IP Library › Granted Patent US 4,428,997
Granted Patent Utility
US 4,428,997 · App. 06/107,415

Protective coatings for documents

Inventor: Joseph Shulman
Patented Case View Patent ↗
Granted: Jan 31, 1984 Filed: Dec 26, 1979
Inventor
Joseph Shulman
Assignee (at issue)
Polaroid Corporation

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Quick Facts
Patent No.
US 4,428,997
App. No.
06/107,415
Filed
1979-12-26
Granted
1984-01-31
Kind
A