US PATENT SUBCLASS 570 / 264-- .~.~ Preservation or stabilization treatment

US PATENT SUBCLASS 570 / 264
.~.~ Preservation or stabilization treatment

Current as of: June, 1999
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570 /	HD	ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*	DD	ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101	DF	.~ HALOGEN CONTAINING {21}
264		.~.~ Preservation or stabilization treatment

DEFINITION

Classification: 570/264

Preservation or stabilization treatment:

(under subclass 101) Process of treating a compound to increase its stability or prevent or reduce deterioration.

(1) Note. This process may include contacting with a chemical agent or a physical treatment, e.g., heating, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102+, for a process of adding an agent as a preservative or stabilizer which remains with the compound.

211, 238+ and 262+, for processes of increasing the stability of a compound by purification.