US PATENT SUBCLASS 411 / 420
.~.~.~.~ Inclined 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}
411  DF  .~ Thread or shank structure {7}
417  DF  .~.~ Circumferentially interrupted thread {2}
418  DF  .~.~.~ By longitudinal slot {2}
420.~.~.~.~ Inclined slot {1}
421  DF  .~.~.~.~.~> Helically oriented


DEFINITION

Classification: 411/420

Inclined slot:

(under subclass 418) Subject matter wherein the groove is at an angle to the fastening means axis.