IP Library › Granted Patent US 4,874,440
Granted Patent Utility
US 4,874,440 · App. 07/085,851

Superplastic aluminum products and alloys

Inventors: Ralph R. Sawtell, Philip E. Bretz, Craig L. Jensen
Patented Case View Patent ↗
Granted: Oct 17, 1989 Filed: Aug 14, 1987
Inventors
Ralph R. Sawtell
Philip E. Bretz
Craig L. Jensen
Assignee (at issue)
Aluminum Company of America

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Quick Facts
Patent No.
US 4,874,440
App. No.
07/085,851
Filed
1987-08-14
Granted
1989-10-17
Kind
A