US PATENT SUBCLASS 216 / 34
.~ Etching improves or promotes adherence of preforms being bonded

Current as of: June, 1999
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216 /   HD   ETCHING A SUBSTRATE: PROCESSES

33  DF  ADHESIVE OR AUTOGENOUS BONDING OF TWO OR MORE SELF-SUSTAINING PREFORMS WHEREIN AT LEAST TWO OF THE PREFORMS ARE NOT INTENDED TO BE REMOVED (E.G., PREFABRICATED BASE, ETC.) {2}
34.~ Etching improves or promotes adherence of preforms being bonded {1}
35  DF  .~.~> Bonding of preform of metal or an alloy thereof to a preform of a nonmetal

DEFINITION

Classification: 216/34

Etching improves or promotes adherence of preforms being bonded:

(under subclass 33) Process wherein etching is used to improve or promote adherence or bonding between two or more preforms.

(1) Note. Included herein is the use of etching to improve or promote the adherence of an adhesive and a preform.