IP Library › Granted Patent US 4,632,801
Granted Patent Utility
US 4,632,801 · App. 06/779,397

Blown film extrusion

Inventor: Laurence E. Dowd
Patented Case View Patent ↗
Granted: Dec 30, 1986 Filed: Sep 23, 1985
Inventor
Laurence E. Dowd
Assignee (at issue)
Norchem, Inc.

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Quick Facts
Patent No.
US 4,632,801
App. No.
06/779,397
Filed
1985-09-23
Granted
1986-12-30
Kind
A