US PATENT SUBCLASS 430 / 492
.~.~.~ Buffer

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

Internet Version by PATENTEC © 1999      Terms of Use


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}
492.~.~.~ Buffer

DEFINITION

Classification: 430/492

Buffer:

(under subclass 486) Compositions wherein the additive functions to maintain the pH of the composition at a relatively constant level.