US PATENT SUBCLASS 427 / 499
.~.~.~.~ Natural cellulose substrate

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

457  DF  DIRECT APPLICATION OF ELECTRICAL, MAGNETIC, WAVE, OR PARTICULATE ENERGY {15}
487  DF  .~ Polymerization of coating utilizing direct application of electrical, magnetic, wave, or particulate energy (i.e., including cross-linking, curing, and hardening of organics) {8}
496  DF  .~.~ High energy electromagnetic radiation or high energy particles utilized (e.g., gamma rays, X-rays, atomic particles, i.e., alpha rays, beta rays, electrons, etc.) {9}
498  DF  .~.~.~ Immersion, partial immersion, spraying, or spin coating utilized (e.g., dipping, etc.) {1}
499.~.~.~.~ Natural cellulose substrate

DEFINITION

Classification: 427/499

Natural cellulose substrate:

(under subclass 498) Processes wherein the coated article, base, or substrate is composed of natural cellulose, e.g., wood or cellulosic fibers.

(1) Note. Paper is not considered proper for this subclass, as paper is a chemically treated unnatural product.