US PATENT SUBCLASS 264 / 220
.~ Utilizing surface to be reproduced as an impression pattern

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

219  DF  WITH STEP OF MAKING MOLD OR MOLD SHAPING, PER SE {1}
220.~ Utilizing surface to be reproduced as an impression pattern {4}
221  DF  .~.~> With destruction of pattern or mold to dissociate
222  DF  .~.~> Anatomical surface (i.e., using body area as an impression pattern) {1}
224  DF  .~.~> With flexible inversion of a forming surface
225  DF  .~.~> Forming mold from fluent material {1}

DEFINITION

Classification: 264/220

(under subclass 219) Processes in which an area or shape to be duplicated is employed to form or produce a duplicating pattern or mold surface.