US PATENT SUBCLASS 411 / 464
.~.~.~.~.~ Entire fastener having corrugations parallel to driving direction


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

439  DF  IMPACT DRIVEN FASTENER, E.G., NAIL, SPIKE, TACK, ETC. {13}
457  DF  .~ Multiple prong, e.g., nailing plate, staple, etc. {8}
461  DF  .~.~ Of sheet metal {2}
462  DF  .~.~.~ Including stiffening means {1}
463  DF  .~.~.~.~ Rib {1}
464.~.~.~.~.~ Entire fastener having corrugations parallel to driving direction {1}
465  DF  .~.~.~.~.~.~> Having sawtooth penetrating edge


DEFINITION

Classification: 411/464

Entire fastener having corrugations parallel to driving direction:

(under subclass 463) Subject matter wherein essentially the entire fastener surface includes elongated alternating ridges and grooves.