US PATENT SUBCLASS 430 / 321
.~.~ Optical device

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

Internet Version by PATENTEC © 1999      Terms of Use


430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

269  DF  IMAGING AFFECTING PHYSICAL PROPERTY OF RADIATION SENSITIVE MATERIAL, OR PRODUCING NONPLANAR OR PRINTING SURFACE - PROCESS, COMPOSITION, OR PRODUCT {17}
320  DF  .~ Making named article {1}
321.~.~ Optical device

DEFINITION

Classification: 430/321

Optical device:

(under subclass 320) Processes wherein the article is an

optical device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4, for optical devices which are useful for imaging, such as a photo mask, and process of making those devices.

SEE OR SEARCH CLASS

216, Etching a Substrate: Processes, for disclosure (nonclaimed) of forming an image by radiation imagery and involving a claimed post imaging etching process.