US PATENT SUBCLASS 502 / 420
.~.~.~ Temperature vs. time factor

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

400  DF  SOLID SORBENT {6}
416  DF  .~ Free carbon containing {3}
418  DF  .~.~ Process utilizing solid or liquid source carbonizable material, or product thereof {9}
420.~.~.~ Temperature vs. time factor

DEFINITION

Classification: 502/420

Temperature vs. time factor:

(under subclass 418) Process in which a relationship between the amount and the duration of heat is positively recited e.g., rise from x to x1 in y hours.

SEE OR SEARCH THIS CLASS, SUBCLASS:

436, for a process including 2 distinct heating stages.