US PATENT SUBCLASS 525 / 51
.~.~ Effecting a change in a process in response to a measurement or test

Current as of: June, 1999
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525 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
51.~.~ Effecting a change in a process in response to a measurement or test

DEFINITION

Classification: 525/51

Effecting a change in a process in response to a measurement or test:

(under subclass 50) Subject matter wherein a process parameter is determined and some process parameter is altered in response to the determination.

(1) Note. A test or measurement performed by a human being with a subsequent control operation is proper herein.

(2) Note. Treating a material to a certain condition without a defined inanimate measurement, test, inspection, or control (e.g., temperature, pH, etc.) is not proper subject matter for this subclass.