US PATENT SUBCLASS 24 / 401
.~ Having interlocking surface formed from single member with varying cross section

Current as of: June, 1999
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24 /   HD   BUCKLES, BUTTONS, CLASPS, ETC.

381  DF  ZIPPER OR REQUIRED COMPONENT THEREOF {15}
401.~ Having interlocking surface formed from single member with varying cross section {1}
402  DF  .~.~> Opposed surface having dissimilar cross section

DEFINITION

Classification: 24/401

Having interlocking surface formed from single member with varying cross section:

(under subclass 381) Zippers* including at least one interlocking surface formed from a single member and having a cross-sectional shape which varies at different points perpendicular to and located along its length.

SEE OR SEARCH THIS CLASS, SUBCLASS:

577, for a separable-fastener* having two, similarly shaped, interlocking faces which each have parallel cross sections of varying shape along their length.