IP Library › Granted Patent US 4,647,640
Granted Patent Utility
US 4,647,640 · App. 06/715,359

Polymer materials

Inventors: Gianlarlo Capaccio, Ian MacMillan Ward
Patented Case View Patent ↗
Granted: Mar 3, 1987 Filed: Mar 25, 1985
Inventors
Gianlarlo Capaccio
Ian MacMillan Ward
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION

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Quick Facts
Patent No.
US 4,647,640
App. No.
06/715,359
Filed
1985-03-25
Granted
1987-03-03
Kind
A