US PATENT SUBCLASS 502 / 439
MISCELLANEOUS (E.G., CARRIER OR SUPPORT PER SE OR PROCESS OF MAKING, ETC.)


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

439MISCELLANEOUS (E.G., CARRIER OR SUPPORT PER SE OR PROCESS OF MAKING, ETC.)


DEFINITION

Classification: 502/439

MISCELLANEOUS (E.G., CARRIER OR SUPPORT, PER SE, OR PROCESS OF MAKING, ETC.):

(under the class definition) Product serving as a substrate for the catalyst or sorbent and the process of preparing the same.

(1) Note. A patent claiming (disclosing) a carrier or support acting as either a catalyst, or sorbent is placed in the first appearing subclass providing for the function and crossed in the other subclasses providing for the other functions.

SEE OR SEARCH CLASS

252, Composition,

1, for a patent having only generic claims(s) and plural disclosures, e.g., support for catalyst or sorbent, filler, pigment, etc.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

310+, for an element for that class having a catalyst coated, laminated, etc. thereto. CROSS-REFERENCE ART COLLECTIONS