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USPTO Terms of Art — STEP to SZ

Glossary of USPTO Terms of Art

| A | B | C-CL | CM-CZ | D-DIM | DIM-DZ | E | F | G | H | I | J-K | L | M-MET | MET-MZ | N | O | P-PHA | PHE-PON | POR-PZ | Q | R | S-SEPA | SEPO-SMT | SN-STEM | STEP-SZ | T-TOG | TON-TZ | U | V | W | X-Z |

STEP RECOVERY DIODE (CLASS 257)
A pn junction active solid-state device in which a forward bias voltage injects charge carriers across the junction but prior to recombination of the carriers, a reverse voltage is applied to return the charge carriers to their source as a group.

STEREOPTICON (CLASS 353)
See Projector.

STEREOSCOPIC VISION (CLASS 351)
The ability to perceive distance and the three dimensional properties of a viewed object.

STIFFENER (CLASS 052)
Means embedded in cast material or extending between sustainers or load bearing components which act to strengthen a construction in contradistinction to acting as a primary load­bearing or bend-resisting member.

STILL (VIDEO) (CLASS 725)
A portion of motion video material consisting of a single field or frame of video data.

STIRRER (CLASS 366)
A device which is movable by an applied force and which in its movement causes agitation of material. The force may be applied manually, by movement of the material, by relative motion of the chamber, or by a power source, either directly or through a drive train.

STIRRERS, PLURAL (CLASS 366)
Two or more devices or elements which are movable bodily by an applied force and which move bodily relative to each other an in such movement cause agitation of material. Where a plurality of like or diverse stirrer elements are in fixed relation to each other and move together as a unit they will be considered a single stirrer even if the elements are adjustable relative to each other prior to agitation or are flexible so that portions thereof move relative to each other during agitation.

STITCHING(*) (CLASS 412)
The process of fastening together sheets(*), signatures(*), or quires(*) at one edge thereof to form a bound book(*). Usually this is done by sewing with needle and thread, but this may be done by a similar fastening operation.

STOCK (CLASS 072)
A piece or an indeterminate length of material from which a plurality of blanks* or products* may be made (usually in linear sequence).

STOCK (CLASS 425)
A material being worked on or treated by apparatus. Synonym: WORK

STOCK-MATERIAL (CLASS 428)
A sheet*, web*, rod*, strand*, tube or block, mass or layer. (Structural)

STONE GATHERING (CLASS 171)
Moving of small stones and rocks resting on the surface of the earth into piles, rows or collection receptacles.

STOOL (CLASS 164)
The separable base of an ingot mold. The base provides a surface onto which the mold is placed, and also serves as the bottom of the mold.

STORAGE (CLASS 234)
The temporary retention, in a portion of machine, of input data, after cessation of the input-impulse* and before a corresponding initiation of tool selection*.

STORAGE (CLASS 369)
Retention of information in a permanent or semipermanent form, or establishing such retention.

STORAGE MEDIUM (CLASS 369)
An object having a characteristic which is, or may be, modified at positional increments in accordance with the time variation of information which is stored thereon.

STRAND (CLASS 112)
A relatively slender and flexible element having a width and thickness of the same order of magnitude and a length which is either (a) indeterminate or (b) coextensive with the length or width of a sheet or layer. A strand may be a monofilament or it may include either a plurality of filaments or fibers disposed in parallelism (e.g., tow) or constituent fibers and/or filaments knitted, plaited, braided, twisted, interlaced, interlocked, or otherwise secured together to form a unit such as roving, thread yarn, cord, rope or cable.

STRAND (CLASS 226)
Material having a cross-section (transverse of the longitudinal* dimension) of substantially similar width and depth dimensions (compare with Web). Exemplary strand materials are: rod, tube, cordage (i.e., rope, cable, etc.) chain, filaments, yarn, wire.

STRAND (CLASS 428)
A relatively slender and flexible element* having a width and thickness of the same order of magnitude and a length which is either (a) indeterminate or (b) coextensive with the length or width of a sheet* or layer* with which it may be associated. A strand may be a monofilament or it may include either a plurality of filaments* or fibers* disposed in parallelism (e.g., tow) or constituent fibers* and/or filaments* knitted, plaited, braided, twisted, interlaced, interlocked or otherwise secured together to form a unit such as roving, thread, yarn, cord, rope or cable. (Structural)

STRAND PORTION (CLASS 112)
A strand of finite length; or an unsevered but determinate part of a strand.

STRAND-PORTION (CLASS 428)
A strand* of finite length; or an unsevered but determinate length of a strand. (Structural)

STRAW (CLASS 460)
The material usually consisting of grain stalks mixed with leaves and chaff that is left after the threshing operation.

STRAW WALKER (CLASS 460)
A mechanism that imparts a fluffing, pitching motion to the material other than grain before it "walks" out of the rear of the combine.

STRESS RELIEVING OR STRESS RELIEF ANNEALING (CLASS 148)
The heating of metal to a comparatively low temperature to relieve microstructural strain induced by working.

STRIP (CLASS 112)
A web or sheet of relatively narrow ribbon-like material. A strip which is interwoven or intertangled with other strips or strands in the same manner as a strand will be termed a "strand-like strip".

STRIP (CLASS 281)
A sheet folded back and forth along at least two fold lines and unattached to anything or attached to a backing either at the ends only or in such a way that the folded portions can be successively released without mutilation, or it is a sheet rolled up. Also patents claiming fold lines or other features for so folding or rolling up sheets are classified as "strips".

STRIP (CLASS 283)
A sheet folded back and forth along at least two fold lines and unattached to anything or attached to a backing either at one or both ends only or in such a way that the folded portions can be successively released without mutilation, or it is a sheet rolled up. Also patents claiming fold lines or other features for so folding or rolling up sheets are classified as "strips".

STRIP (CLASS 428)
A web* or sheet* or relatively narrow ribbon-like material. A strip which is interwoven or intertangled with other strips or with strands, in the same manner as a strand, will be termed a "strand-like strip". (Structural)

STRIP (CLASS 462)
A sheet* in the form of a roll or a sheet folded back and forth along at least two folded lines.

STRIPPED of ORBITAL ELECTRONS (CLASS 376)
See Fully Ionized.

STRIPPING LAYER (CLASS 430)
A layer or layers which are part of a combination of plural layers which layer or layers are strippable from a layer immediately adjacent to it or are capable of separating by internal cohesive failure.

STRUCTURAL (CLASS 256)
As used herein, this term applies to any relatively rigid slat or bar member used as an element of a fence.

STRUCTURALLY DEFINED (CLASS 430)
Defined in terms of: (a) numerical or relative dimension; e.g., 5 microns thick, twice as long as wide, etc. As applied to products or layers, it is the overall exterior dimension of either the completed product or an individual layer; (b) plural, non-coextensive layers, e.g., leader strip, etc., however, nonuniform or non-coextensive images are not considered structure; (c) overall mechanical shape, except mere rectangular or planar, e.g., roll of film sprocket holes, etc.

STRUCTURE (CLASS 330)
Refers to any details of a circuit element as to the nature or composition of the material or materials of which it is made, the form or shape of the element or its parts or the relationship in space of such elements or parts or such characteristics of the elements relative to each other.

STRUCTURE-TO-BE-SECURED* (CLASS 024)
Structure having a principle function other than that normally associated with this class (i.e., not a component of a Class 24 fastener) which is attached, fastened, gripped, or secured by a Class 24 fastener, either to itself or to another structure.

STRUCTURED DATA (CLASS 707)
A collection of data stored in a form that can be readily translated to a database. The most common form of structured data is Common separated values (CSV).

STT (CLASS 438)
stacked transistor capacitor cell

SUB-MASTER-KEY (CLASS 070)
One designed for control of all of a limited number of a plurality or series of lock operating mechanisms and subordinate to a master key.

SUBATOMIC PARTICLES (CLASS 376)
All particles of less than atomic mass, i.e., the elementary particles (proton, neutron, electron, positron, neutrino, meson, etc.) as well as the alpha particles and deutrons, the charge and mass of which indicates them to be composite particles.

SUBCRITICAL (FISSION) REACTOR (CLASS 376)
For the purpose of this class, is a reactor which has (a) an active volume (core) containing less than the necessary amount of fissionable material (fuel) to become critical, and (b) an auxiliary neutron source combined therewith in such a way as to trigger fissioning with the active volume and with proper amplification of neutrons whereby a steady state chain reaction results, i.e., it becomes critical.

SUBHET (CLASS 438)
superconducting base hot electron transistor

SUBLIMATION (CLASS 201)
A process in which a solid passes into the vapor state without liquefaction and the vapor returns to the solid state without passing through the liquid phase.

SUBLIMATION (CLASS 202)
A process in which a solid passes into the vapor state without liquefaction and the vapor returns to the solid state without passing through the liquid phase.

SUBLIMATION (CLASS 203)
A process in which a solid passes into the vapor state without liquefaction and the vapor returns to the solid state without passing through the liquid phase.

SUBSCRIBER (CLASS 379)
Telephone circuitry or instruments at subscriber location.

SUBSCRIBER (CLASS 379)
Telephone user or service location.

SUBSCRIBER (CLASS 725)
One who uses a communication or signaling service. Equipment is typically installed at a subscriber s premises to enable the reception, and perhaps the transmission, of communication signals.

SUBSIT (CLASS 438)
superconducting base semiconductor isolated transistor

SUBSTRATE (CLASS 008)
The term substrate is used here to refer to the base material being dyed.

SUBSTRATE (CLASS 117)
The surface upon which a coating is formed. In the case of single-crystal* growth, such as epitaxy*, the substrate is also a seed*. Contrast with base*.

SUBSTRATE (CLASS 216)
The entire article or workpiece contacted by the chemical reagent, except for materials which have been applied to an article or workpiece for the sole expressed purpose of protecting at least a portion thereof from the action of the chemical material, i.e., a resist.

SUBSTRATE (CLASS 257)
The supporting material on or in which the components of an integrated circuit are fabricated or attached.

SUBSTRATE (CLASS 425)
A workpiece to which a layer or coating of material is applied. Synonym: BASE

SUBSTRATE (CLASS 428)
See Base*. (Structural)

SUBSTRATE (CLASS 438)
A. A base upon which a coating is formed. See the class definition for the requirements for coating, per se, or etching, per se, when a base of semiconductor or containing a semiconductive region is the substrate. B. The supporting material on or in which the components of an integrated circuit are fabricated or attached.

SUBSTRATE BIAS (CLASS 257)
The electric potential applied to a substrate, which typically serves as the reference potential against which other voltages are measured. Also, in a MISFET, a voltage applied to the substrate with respect to the source region.

SUBSTRATE* (CLASS 349)
For the purpose of this class, substrate is a flexible or rigid member which provides structural support in a cell.

SUBTRACTIVE COLOR (CLASS 430)
A color (cyan, magenta, and yellow) which when combined with another subtractive color produces an additive color (red, green, blue).

SULFOXY (CLASS 260)
Denotes the presence of a radical containing sulfur bonded to oxygen and includes the sulfoxide, sulfone, sulfonyl, sulfo, and sulfate groups.

SULFOXY (CLASS 510)
Denotes a substituent having at least one oxygen atom double bonded to a tetravalent or hexavalent sulfur atom.

SULFUR DYE (CLASS 008)
Sulfur dyes contain sulfur linkages within their molecules which are produced by sulfurization, i.e., heating of organic compounds with sulfur or alkali polysulfides.

SUN GEAR (CLASS 475)
A gear mounted for rotation about the same axis as the rotational axis of a planet carrier* and having a drive face contacting a drive face of a planet pinion* between the axis of the planet pinion and the axis of the planet carrier.

SUPERCONDUCTING (CLASS 505)
The state of a superconductor in which it exhibits superconductivity.

SUPERCONDUCTIVE (CLASS 505)
of or pertaining to a material or device which is capable of exhibiting superconductivity.

SUPERCONDUCTIVITY (CLASS 505)
A property of a material that is characterized by zero electrical resistivity and, ideally, zero permeability.

SUPERLATTICE (CLASS 117)
A single-crystal*, usually composed of a semiconductor, having an internal structure of more than two layers, each layer having a composition different from the next adjacent layer. The term includes alternating layers of two compositions.

SUPERLATTICE (CLASS 257)
A periodic sequence of variations in carrier potential energy in a semiconductor, of such magnitude and spacing that the current carrier wave function is spread out over many periods, so that carrier energy and other properties are determined in part by the periodic variations. The variation may be in chemical composition of the material, as in a sequence of heterojunctions, or in impurity concentration, forming a doping superlattice, or both.

SUPERLATTICE (CLASS 438)
A periodic sequence of variations in carrier potential energy in a semiconductor, of such magnitude and spacing that the current carrier wave function is spread out over many periods, so that carrier energy and other properties are determined in part by the periodic variations. The variation may be in chemical composition of the material, as in a sequence of heterojunctions, or in impurity concentration, forming a doping superlattice, or both.

SUPPLY HOLDER (CLASS 239)
A receptacle, container, or the like for retaining material to be sprayed with or without additional mixing with or entrainment in a fluid; a vessel or retainer other than a flowing stream or flow line.

SUPPLY MEANS (CLASS 141)
The contents material confining means of the dispenser.

SUPPLY-MEANS (CLASS 401)
A reservoir or a feeder for fluent coating material.

SUPPORT (CLASS 258)
As herein used, this term designates the device or element from which the load is delivered.

(1) Note. Either "receiver" or "support" may be mounted on the ground or on the vehicle.

SUPPORT (CLASS 416)
A structure which bears the weight of an impeller* to maintain it in operative position. The support does not partake of the working motion of the impeller (in this respect the support is different from the carrier*) but may be adjustable to various positions of use or have movement concurrent with the impeller movement as that of a rotatable or oscillating fan support.

SUPPORT-CLAMP(*) (CLASS 024)
A securing mechanism or element which (1) is attached to the structure-to-be-secured* for subsequently mounting it on a rigid* or semirigid* member (e.g., wall, floor, roof) or article (e.g., pen, vehicle) having an additional and usually principal function other than normally associated with this class, and (2) having either (a) a gripping surface which is mounted to and intended to coact with an opposed gripping surface formed by the structure-to-be-secured* to engage the opposite sides of the rigid or semirigid member or article positioned therebetween, or (b) two coacting members or member segments having gripping surfaces which engage opposite sides of the rigid* or semirigid* member or article in a jawlike manner, and (3) having structure which hinders the movement of the gripping surfaces relative to the member or article and prevents the separation of the structure-to-be-secured* from the member or article. The gripping surfaces of the securing mechanism or element are intended to be always easily moved into and out of engagement with the rigid* or semirigid* member or article by either direct manual or tool force thereon or actuation of an operator* attached to the securing mechanism or element. In addition, the gripping surfaces of the securing mechanism or element, when engaging with or disengaging from the rigid* or semirigid* member or article, do not exceed the elastic limit of or destroy any portion of the securing mechanism or element. If the mechanism or element is formed from either a single piece or plural fixedly attached pieces of rigid* material, then the structural shape of the gripping surfaces and the outward force of the compressed structure-to-be-secured* provides the gripping force required above.

SURFACE DEFORMATION (CLASS 065)
A reshaping operation involving only the surface of the glass preform and only partially through the thickness and wherein the overall shape of the preform throughout its breadth and width is unaltered.

SURFACE DEFORMATION (CLASS 425)
A reshaping operation involving only a surface of a preform, i.e., partially through the thickness of a layer.

SURFACE MOUNT DEVICES (CLASS 257)
Active or passive solid-state devices which are structured and configured to be mounted directly to a printed circuit board surface. This type of mounting is distinguished from "through-hole" mounting which involves the electrical and physical connection of devices to a printed circuit board using drilled and plated holes through the conductive pattern of the board.

SURFACE MOUNT DEVICES (CLASS 438)
Active or passive solid-state devices which are structured and configured to be mounted directly to a printed circuit board surface. This type of mounting is distinguished from "through-hole" mounting which involves the electrical and physical connection of devices to a printed circuit board using drilled and plated holes through the conductive pattern of the board.

SURFACE RESISTIVITY (CLASS 257)
The resistance of a material between two opposite sides of a unit square of its surface. Also called Sheet Resistance. Measured in ohms, often written as "ohms per square" in this case.

SURFACE RESISTIVITY (CLASS 438)
The resistance of a material between two opposite sides of a unit square of its surface. Also called Sheet Resistance. Measured in ohms, often written as "ohms per square" in this case.

SURFACE-ACTIVE AGENT (Surfactant) (CLASS 510)
Denotes an organic compound which alters (usually reduces) the surface tension of a liquid, thus facilitating cleaning. Surface-active agents are commonly referred to as surfactants, emulsifiers, wetting agents, or simply detergents, as distinct from detergent compositions which include additional components, such as detergency builders or other cleaning auxiliaries. A surfactant molecule contains a hydrophobic (water-repelling) portion which is frequently an alkyl radical having a straight chain of eight or more carbons, and a hydrophilic (water-attracting) portion. For purposes of this class, the broad categories of surfactants are based on the nature of the hydrophilic portion of the molecule.

(1) Note. An anionic (anion-active) surfactant, referred to in the schedule as "anionically substituted," includes a hydrophilic portion which is most commonly a water-soluble salt of a carboxylic or sulfonic acid, or of a long-chain alcohol ester of sulfuric, phosphoric, or phosphonic acid (e.g., sodium higher alkyl sulfonate, etc.).

(2) Note. A cationic (cation-active) surfactant includes a hydrophilic portion which is a cation (i.e., positively charged ion), such as an ammonium or quaternary ammonium salt, having a long-chain alkyl substituent (e.g., higher-alkyl quaternary ammonium salts, etc.).

(3) Note. A nonionic surfactant includes a hydrophilic portion which commonly is a poly(ethylene oxide) moiety (i.e., polyether chain) attached to a hydrophobic portion which may be nonpolar or have a lower degree of polarity than the hydrophilic part, such as poly(propylene oxide), higher alkyl, etc.

(4) Note. A zwitterionic, amphoteric, or ampholytic surfactant includes both an anionic and a cationic portion connected by a covalent bond, usually indirect (e.g., betaines, amino acids, etc.).

(5) Note. Semipolar nonionic surfactants include water-soluble amine and phosphine oxides and sulfoxides.

(6) Note. Soap, for purposes of this class, is an alkali metal, ammonium or organic base salt of an unsubstituted or hydroxy-substituted, saturated or unsaturated higher fatty acid, or of rosin (abietic) acid, or of mixtures of any of these acids. These salts are water-soluble and are considered to be anionic surfactants.

SURFACE-CHANNEL CCD (CLASS 257)
A charge coupled device in which charge resides at the semiconductor surface.

SUSPENSION (CLASS 210)
Liquid carrying throughout its volume in extremely fine subdivision an insoluble substance (solid or another liquid) which will not settle under gravity nor can be filtered without special treatment such as addition of chemical agents. A DISPERSION. See FLOCCULATION, GEL, and MEMBRANE.

SUSTAINER (CLASS 052)
A rigid member or construction having a limited closed periphery which is (1) greatly elongated relative to any lateral dimension (2) resists transverse loading and (3) supports or retains other components of a building construction, e.g., stud, joist, beam, or column.

SUSTAINER (CLASS 249)
A rigid member or construction having a limited closed periphery which is (1) greatly elongated relative to any lateral dimension (2) resists transverse loading and (3) supports or retains other components of a building construction; e.g., joist, beam or column.

SWAMI (CLASS 438)
sidewall masked isolation

SWEEP (CLASS 164)
A small section of a regular pattern which is generally rotated in sand to provide the whole mold cavity.

SWEEPING (CLASS 343)
Moving the antenna beam repeatedly along a single line (which may be straight or curved) in space.

SWINGING MOVEMENT OF CLOSURE: (CLASS 049)
A turning motion about a pivot to open or close a passage.

SWITCH (CLASS 330)
A device or means for opening or closing an electric circuit.

SWITCH (CLASS 725)
To establish communication channels among two or more switch interfaces at customers demand.

SWNT (SINGLE-WALLED NANOTUBE) (CLASS 977)
Formed from one layer of graphene wrapped in cylindrical form.

SYMBOL (CLASS 347)
A mark* which conveys intelligent information. Unless otherwise indicated, "mark" and "symbol" are used synonymously in the subclass definitions of this class.

SYNC PULSE (CLASS 725)
In television, signals employed for synchronizing scanning that occur at rates related to the line and field frequencies. In a television receiver, sync pulses are used to synchronize the deflection generators.

SYNCHRONIZATION (CLASS 709)
Matching of timing between separate computers or among the components of a system so that all are coordinated.

SYNCHRONIZATION (CLASS 718)
Matching of timing between separate computers or among the components of a system so that all are coordinated.

SYNCHRONIZATION (CLASS 719)
Matching of timing between separate computers or among the components of a system so that all are coordinated.

SYNCHRONOUS MOTOR (CLASS 318)
An alternating-current or a pulsating current motor which, under running-speed conditions, operates at an average speed which is always exactly proportional to the frequency or periodicity of the source which supplies electric energy to the armature or primary circuit of the motor and which speed is independent of the voltage of the source, the magnitude of the field excitation, or the load on the motor.

SYNONYMS (CLASS 075)
See the beginning of the Glossary section for a list of synonyms of names of metal elements used in this class (mostly obsolete).

SYNTHESIS (CLASS 204)
For purposes of this class, "synthesis" includes the production of a desired element or compound by breaking down from complex forms to simpler ones as well as the building up of complex forms from simpler ones.

SYNTHETIC (CLASS 210)
A material not found in nature, but man-made from chemical building blocks, with properties resembling naturally occurring materials. It does not include man-made duplicates of natural material or chemical modified natural materials. For example, regenerated cellulose and cellulose acetate are not included nor is zein, but polyester, vinyl, and nylon are included.

SYSTEM (CLASS 137)
A term applied to any apparatus of the class which comprises more than a single flow path and/or a single valve unit. It may include only an unvalved branched flow path or a single flow path having two or more valve units. In some instances subcombinations or elements having special utility in the combination and having no other classification have been included in the group of subclasses pertaining to the system, as subclasses 777-802, Expansible Chamber Devices.

SYSTEM (CLASS 141)
The combination of dispenser and receiver in flow exchange relation with any or all appurtenances thereof.

SYSTEM (CLASS 902)
A plurality of electronic devices (components*) functionally integrated to process data in order to perform a transaction*.

| A | B | C-CL | CM-CZ | D-DIM | DIM-DZ | E | F | G | H | I | J-K | L | M-MET | MET-MZ | N | O | P-PHA | PHE-PON | POR-PZ | Q | R | S-SEPA | SEPO-SMT | SN-STEM | STEP-SZ | T-TOG | TON-TZ | U | V | W | X-Z |

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