US PATENT SUBCLASS 430 / 302
.~.~ Lithographic

Current as of: June, 1999
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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}
300  DF  .~ Making printing plates {6}
302.~.~ Lithographic {3}
303  DF  .~.~.~> Driography
304  DF  .~.~.~> Coating over colloid image and removal of colloid image to leave reversed image in coating, i.e., deep etch
305  DF  .~.~.~> Continuous tone or collotype

DEFINITION

Classification: 430/302

Lithos:graphic:

(under subclass 300) Processes wherein ink adheres to the surface of the printing plate based upon oleophilic and oleophobic, or hydrophilic or hydrophobic differences at the surface of the plate which ink is capable of transfer onto a surface to be printed producing a reproduction.