IP Library › Granted Patent US 4,921,563
Granted Patent Utility
US 4,921,563 · App. 07/221,367

Method for making foldable plastic products

Inventors: Gary T. Schwertner, Edward S. Robbins, III
Patented Case View Patent ↗
Granted: May 1, 1990 Filed: Jul 19, 1988
Inventors
Gary T. Schwertner
Edward S. Robbins, III
Assignee (at issue)
Edward S. Robbins, III

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Quick Facts
Patent No.
US 4,921,563
App. No.
07/221,367
Filed
1988-07-19
Granted
1990-05-01
Kind
A