IP Library › Granted Patent US 4,895,759
Granted Patent Utility
US 4,895,759 · App. 07/315,981

Saturating grade paper

Inventor: Roger A. Crawford
Patented Case View Patent ↗
Granted: Jan 23, 1990 Filed: Mar 2, 1989
Inventor
Roger A. Crawford
Assignee (at issue)
PPG Industries, Inc.

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Quick Facts
Patent No.
US 4,895,759
App. No.
07/315,981
Filed
1989-03-02
Granted
1990-01-23
Kind
A