US PATENT SUBCLASS 162 / 159
.~.~ Fire proofing agent

Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

100  DF  PROCESSES AND PRODUCTS {31}
158  DF  .~ Non-fiber additive {16}
159.~.~ Fire proofing agent

DEFINITION

Classification: 162/159

(under subclass 158) Processes and products in which the additive renders the final fibrous product fireproof.

(1) Note. Patents are placed in this subclass only when the additive has the specific effect of imparting fireproof qualities.

SEE OR SEARCH CLASS

106, Compositions: Coating or Plastic,

15.05+, for fireproofing coating compositions.

252, Compositions, 601+, for fire retarding agents.

428, Stock Material or Miscellaneous Articles,

921, for an art collection of flameproof products.