US PATENT SUBCLASS 277 / 946
.~.~.~ PTFE "TEFLON"

Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

935  DF  SEAL MADE OF A PARTICULAR MATERIAL {4}
944  DF  .~ Elastomer or plastic {1}
945  DF  .~.~ Containing fluorine {1}
946.~.~.~ PTFE "TEFLON"

DEFINITION

Classification: 277/946

PTFE OR TEFLON:

(under subclass 945) Containing fluorine wherein the fluoride is part of a polytetrafluoroethylene composition.