US PATENT SUBCLASS 8 / 517
.~.~ Natural polyamide, e.g., casein, gelatin, keratin, collagen, etc.

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

Internet Version by PATENTEC © 1999      Terms of Use


8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

506  DF  NONTEXTILE, DYEING PROCESS OR PRODUCT, INCLUDING INORGANIC FIBER {12}
516  DF  .~ Amide polymer substrate {1}
517.~.~ Natural polyamide, e.g., casein, gelatin, keratin, collagen, etc.

DEFINITION

Classification: 8/517

Natural polyamide, e.g., casein, gelatin, keratin, collagen, etc.:

(under subclass 516) Subject matter for dyeing natural polyamides.

(1) Note. Included herein are naturally occurring proteins, e.g., keratin, casein, zein, gelatin, collagen, etc.