US PATENT SUBCLASS 428 / 371
.~.~.~ Helical or coiled

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

357  DF  COATED OR STRUCTUALLY DEFINED FLAKE, PARTICLE, CELL, STRAND, STRAND PORTION, ROD, FILAMENT, MACROSCOPIC FIBER OR MASS THEREOF {5}
364  DF  .~ Rod, strand, filament or fiber {9}
369  DF  .~.~ Nonlinear (e.g., crimped, coiled, etc.) {2}
371.~.~.~ Helical or coiled

DEFINITION

Classification: 428/371

(under subclass 369) Product in which the curvilinear or multi-directional path comprises a helix- i.e., made by a point rotating around an axis while advancing along the axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

370, for a product comprising a composite or bifilar or collateral filament in the form of a spiral or helix or coil.