US PATENT SUBCLASS 502 / 527.21
.~ Cell openings are quadrilateral or triangular (e.g., pie shaped)

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

527.19  DF  MONOLITH WITH SPECIFIED SHAPE OR DIMENSION OF CELL OPENING (E.G., HONEYCOMB, RINGS, ETC.) {3}
527.21.~ Cell openings are quadrilateral or triangular (e.g., pie shaped)

DEFINITION

Classification: 502/527.21

Cell openings are quadrilateral or triangular (e.g., pie shaped):

(under subclass 527.19) Collection of art wherein the cell openings are triangular or quadrilateral in shape.