US PATENT SUBCLASS 285 / 238
NONMETAL TO METAL

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

238NONMETAL TO METAL {1}
239  DF  .~> Internal member (e.g., sleeve or nipple) {2}

DEFINITION

Classification: 285/238

(under the class definition) Subject matter wherein the joint is peculiar to the union between a nonmetal member and a metal member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148.13+, for serial diverse nonmetal-to-metal couplings. See the Search Notes thereunder.

222.1+, for a coupling for a plural layer pipe.