US PATENT SUBCLASS 430 / 490
.~.~.~ Stabilizer-preservative

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

449  DF  NONRADIATION SENSITIVE IMAGE PROCESSING COMPOSITIONS OR PROCESS OF MAKING {7}
464  DF  .~ Developer {10}
486  DF  .~.~ Processing additive containing {7}
490.~.~.~ Stabilizer-preservative

DEFINITION

Classification: 430/490

Stabilizer-preservative:

(under subclass 486) Compositions wherein the additive prevents undesired decomposition or change of the other ingredients during storage or use, e.g., antioxidant, antistain, etc.