US PATENT SUBCLASS 502 / 527.22
.~ Cell openings are spiral or corrugated

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

527.19  DF  MONOLITH WITH SPECIFIED SHAPE OR DIMENSION OF CELL OPENING (E.G., HONEYCOMB, RINGS, ETC.) {3}
527.22.~ Cell openings are spiral or corrugated

DEFINITION

Classification: 502/527.22

Cell openings are spiral or corrugated:

(under subclass 529.19) Collection of art wherein the cell openings are spiral or corrugated in shape.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles, appropriate subclasses for spiral or corrugated material or articles.