US PATENT SUBCLASS 264 / 37.15
.~.~ Of gas utilized in forming porous material

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

37.1  DF  RECYCLING OF RECLAIMED OR PURIFIED PROCESS MATERIAL (NOT RECYCLED CONSUMER USED ARTICLES) {6}
37.14  DF  .~ Of gaseous process material (e.g., cooling gas, blowing gas, etc.) {3}
37.15.~.~ Of gas utilized in forming porous material

DEFINITION

Classification: 264/37.15

Of gas utilized in forming porous material:

(under subclass 37.14) Processes wherein the gaseous process material is used to form pores or voids in molded or shaped articles.