US PATENT SUBCLASS 411 / 359
.~.~.~.~ Bifurcated

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

337  DF  HEADED FASTENER ELEMENT WITH NUT, WASHER, SECURING MEANS OR CAP {12}
356  DF  .~ Penetrating pin securing means {1}
357  DF  .~.~ Longitudinally inserted {1}
358  DF  .~.~.~ Outwardly deflected {1}
359.~.~.~.~ Bifurcated

DEFINITION

Classification: 411/359

Bifurcated:

(under subclass 358) Subject matter wherein an end of the pinlike element is formed with a longitudinal slot which permits element portions on either side of the slot to be deflected in opposite directions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

457+, for multiple prong impact driven fasteners.