IP Library › Granted Patent US 4,541,978
Granted Patent Utility
US 4,541,978 · App. 06/532,417

Extrusion-fill method of producing an elastomeric spring

Inventors: J. Robert Dieckmann, Michael L. Lauber, Mark R. Roodvoets
Patented Case View Patent ↗
Granted: Sep 17, 1985 Filed: Sep 15, 1983
Inventors
J. Robert Dieckmann
Michael L. Lauber
Mark R. Roodvoets
Assignee (at issue)
The Firestone Tire & Rubber Company

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Quick Facts
Patent No.
US 4,541,978
App. No.
06/532,417
Filed
1983-09-15
Granted
1985-09-17
Kind
A