IP Library › Granted Patent US 5,082,608
Granted Patent Utility
US 5,082,608 · App. 07/538,291

Polystyrene foam sheet manufacture

Inventors: James A. Karabedian, Maurice W. Blackwelder
Patented Case View Patent ↗
Granted: Jan 21, 1992 Filed: Jun 14, 1990
Inventors
James A. Karabedian
Maurice W. Blackwelder
Assignee (at issue)
Owens-Illinois Plastic Products Inc.

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Quick Facts
Patent No.
US 5,082,608
App. No.
07/538,291
Filed
1990-06-14
Granted
1992-01-21
Kind
A