US PATENT SUBCLASS 552 / 103
.~.~ Heavy metal or alumium containing

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

Internet Version by PATENTEC © 1999      Terms of Use


552 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, subclass 1) {11}
101  DF  .~ Acyclic carbon bonded directly to three benzene rings or to two benzene rings and a cyclohexadienyl ring, which acyclic carbon may not be bonded to a fourth carbon (e.g., triphenylmethane dyestuffs, etc.) {12}
103.~.~ Heavy metal or alumium containing

DEFINITION

Classification: 552/103

(under subclass 101) Compounds which contain aluminum or heavy metal.

(1) Note. Heavy metals are those whose specific gravity is

greater than 4.00.

(2) Note. Arsenic is considered as a metal.