US PATENT SUBCLASS 411 / 403
.~.~ Socket or slot

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

378  DF  EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC. {16}
402  DF  .~ Head driving structure {4}
403.~.~ Socket or slot {4}
404  DF  .~.~.~> Orthogonally arranged slots, e.g., Phillips head, etc.
405  DF  .~.~.~> Opposed open ended plural slots, e.g., spanner, etc.
406  DF  .~.~.~> Dovetail
407  DF  .~.~.~> Having driver retaining means

DEFINITION

Classification: 411/403

Socket or slot:

(under subclass 402) Subject matter wherein the head driving structure consists of a peripherally closed cavity or a groove.

SEE OR SEARCH CLASS

81, Tools,

436+, for wrenches designed for insertion into a cavity, e.g., a slot, or socket, etc.