US PATENT SUBCLASS 264 / 274
.~.~.~.~ Preform particularly provided with means to provide interlock with shaped material

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

239  DF  MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE {10}
241  DF  .~ To produce composite, plural part or multilayered article {9}
259  DF  .~.~ Shaping material and uniting to a preform {8}
271.1  DF  .~.~.~ Preform embedded in or surrounded by shaped material {6}
274.~.~.~.~ Preform particularly provided with means to provide interlock with shaped material

DEFINITION

Classification: 264/274

(under subclass 271) Processes in which the body is provided with an undercut or other indentations to produce at least mechanical interference or keyed fit with the subsequently applied material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

249, for processes of mechanically securing preforms together by reshaping at joint portion.