.~.~> For severing perpendicular to longitudinal dimension
DEFINITION
Classification: 428/571
(under subclass 544) Subject matter in which the material is provided, usually along its length, with portions of reduced tensile or fracture resistant properties, e.g., perforations, or with a machine-sensible configuration, at or near an edge, to permit ready or automatic disassociation of the material into smaller units.
(1) Note. In general, claimed recitation of an individual lead frame, per se, with or without electrical leads/connections thereto will not be classified herein, but in Class 257. To be classified in Class 428, the stock material will have to be claimed either as an individual lead frame without being labeled "lead frame", or the lead frame structure will have to be a strip of interconnected lead frames prior to separation into individual lead frames. Claimed recitation of any electrical leads/connections (nominally or in detail) in addition to the lead frame, or of electrical components (nominally or in detail) in addition to the lead frame, per se, will result in the subject matter being classified elsewhere, e.g., Classes 174, 257 or 361.
SEE OR SEARCH THIS CLASS, SUBCLASS:
43+, for a nonmetallic sheet, web or layer weakened to permit separation through its thickness.
131+, for a nonmetallic sheet or web including an aperture.
573, for materials of regular variation in width or thickness where the variations are not provided specifically for purposes of disassociation. 596, for perforated stock where the perforations are not provided specifically for purposes of disassociation or indexing.
SEE OR SEARCH CLASS
29, Metal Working,
413, for processes of obtaining plural pieces from a unitary piece by breaking through a weakened portion.
59, Chain, Staple, and Horseshoe Making,
77, for staple blanks integrally connected by the metal from which they are made, which require further significant shaping in addition to severing to produce a single fastener.
174, Electricity: Conductors and Insulators,
52.4, for lead frames combined with a housing for electrical components.
206, Special Receptacle or Package,
83.5, for a set of articles put up as a mercentile unit.
257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes),
666+, for lead frames, per se, or combined with active solid-state electronic devices. 361, Electricity: Electrical Systems and Devices,
421, for lead frames with plural diverse electrical components.
