US PATENT SUBCLASS 525 / 385
.~.~.~.~ Oxygen compound contains an ether group


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}
55  DF  .~.~ At least one solid polymer derived from ethylenic reactants only {25}
383  DF  .~.~.~ Chemical treating agent contains elemental oxygen or oxygen-containing compound {5}
385.~.~.~.~ Oxygen compound contains an ether group


DEFINITION

Classification: 525/385

Oxygen compound contains an ether group:

Subject matter under subcalss 383 wherein the oxygen compound is an ether.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, the Glossary, for a definition of the term "ether".