US PATENT SUBCLASS 502 / 4
IN FORM OF A MEMBRANE

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

4IN FORM OF A MEMBRANE

DEFINITION

Classification: 502/4

IN FORM OF A MEMBRANE:

(under the class definition) Composition claimed in terms designating a relatively thin, flexible film.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation,

500.21, for a membrane for treating liquids, in general, and water, in particular, by selective diffusion therethrough of components of the liquid.