IP Library › Granted Patent US 5,645,871
Granted Patent Utility
US 5,645,871 · App. 08/590,063

Plastic tile corrugator and mold blocks

Inventors: John S. Berns, Heinrich Dickhut
Patented Case View Patent ↗
Granted: Jul 8, 1997 Filed: Jan 17, 1996
Inventors
John S. Berns
Heinrich Dickhut
Assignee (at issue)
Cullom Machine Tool & Die, Inc.

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Quick Facts
Patent No.
US 5,645,871
App. No.
08/590,063
Filed
1996-01-17
Granted
1997-07-08
Kind
A