US PATENT SUBCLASS 411 / 510
.~.~.~ Plural ridges or flanges

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

500  DF  HEADED FASTENER ELEMENT {2}
508  DF  .~ Having resilient securing structure on shank {1}
509  DF  .~.~ Concentric ridge or flange {1}
510.~.~.~ Plural ridges or flanges

DEFINITION

Classification: 411/510

Plural ridges or flanges:

(under subclass 509) Subject matter provided with two or more raised crested portions or protruding edges.