US PATENT SUBCLASS 252 / 601
FIRE RETARDING

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

601FIRE RETARDING {9}
602  DF  .~> Having disparate function
603  DF  .~> For living matter
604  DF  .~> Material physically quantified
605  DF  .~> Containing gas
606  DF  .~> Intumescent
607  DF  .~> For wood or cellulosic material other than textile
608  DF  .~> For textile (i.e., woven material)
609  DF  .~> For solid synthetic polymer and reactants thereof
610  DF  .~> Dispersion or colloidal system {1}

DEFINITION

Classification: 252/601

FIRE RETARDING:

(under the class definition) Compositions specialized and designed for use in treating materials to make them less combustible or more resistant to fire.

SEE OR SEARCH THIS CLASS, SUBCLASS:

380+, for preservative agents in general.

SEE OR SEARCH CLASS

8, Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers,

115.5+, for use of a fire-retarding composition to chemically modify a textile or fiber.

106, Compositions: Coating or Plastic, particularly 15.05+, for compositions, e.g., paints or varnishes which when applied to surfaces, set or harden to form hard tenacious films, even if such compositions include a fireproofing agent or are inherently fireproofing.

162, Paper Making and Fiber Liberation,

159, for fireproofing agent used in the process or product of the class.

169, Fire Extinguishers,

45, for process of preventing fire by use of a fire-retarding composition.

424, Drug, Bio-Affecting and Body Treating Compositions, appropriate subclasses for a biocidal composition which may also be fireproofing.

427, Coating Processes, appropriate subclasses for coating a fire-retarding composition and treating the same.

428, Stock Material or Miscellaneous Articles, appropriate subclasses for a stock material product in the form of a single or plural layer web or sheet; see especially

276+, for such a product embodying mechanically interengaged strands or strand portions of a cellulosic material, impregnated with a phosphorus compound and having fire resistant or retardant features; and subclass 921 (a cross-reference art collection) for a product having fire or flame proof features.

520, Synthetic Resins or Natural Rubbers, appropriate areas for compositions containing synthetic resin or natural rubber which, when applied to surfaces, set or harden to form hard tenacious adherent films, even if such compositions include a fireproofing agent or are inherently fireproofing. See Lines With Other Classes and Within This Class, for a general outline of subject matter of the Class 520 series.