US PATENT SUBCLASS 424 / 78.38
.~.~ Oxygen heterocycle

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

Internet Version by PATENTEC © 1999      Terms of Use


424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

78.08  DF  SOLID SYNTHETIC ORGANIC POLYMER AS DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI) {6}
78.37  DF  .~ Monomer contains oxygen {1}
78.38.~.~ Oxygen heterocycle

DEFINITION

Classification: 424/78.38

Oxygen heterocycle:

(under subclass 78.37) Subject matter wherein the monomer is an oxygen heterocycle; e.g., a composition used for insulating mucosal tissues from physical trauma which contains an ethylene oxide homopolymer, a composition for use in controlling osseous hemorrphaging which contains a polymer derived from the oxygen heterocycle, 2-keto- 1, 4-dioxane, etc.