US PATENT SUBCLASS 411 / 523
.~.~.~.~ Folded leg having fastener aperture or recess

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

511  DF  FASTENER SECURING ELEMENT {3}
516  DF  .~ Resilient metallic {3}
520  DF  .~.~ Sheet metal {5}
522  DF  .~.~.~ Parallel legs, e.g., U-shaped, etc. {1}
523.~.~.~.~ Folded leg having fastener aperture or recess {1}
524  DF  .~.~.~.~.~> Plural folds

DEFINITION

Classification: 411/523

Folded leg having fastener aperture or recess:

(under subclass 522) Subject matter wherein at least one of the folded parallel appendages is provided with an opening.

(1) Note. The opening is generally provided to allow a portion of the headed fastener or piece to be fastened to extend therethrough.