US PATENT SUBCLASS 71 / 64.11
.~.~ Controlled release

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

Internet Version by PATENTEC © 1999      Terms of Use


71 /   HD   CHEMISTRY: FERTILIZERS

1  DF  PROCESSES AND PRODUCTS {5}
64.01  DF  .~ Forms or conditioning {9}
64.11.~.~ Controlled release

DEFINITION

Classification: 71/64.11

Controlled release:

(under subclass 64.01) Subject matter wherein the material is released to the environment in which it is placed in a regulated manner.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64.07, for the process of coating material of this kind.