Granted Patent
Utility
US 5,153,159 · App. 07/506,305
Elastomers and products having reduced hysteresis
Inventors:
Thomas A. Antkowiak, David F. Lawson, Russell W. Koch, Mark L. Stayer, Jr.
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Apr 9, 1990
Inventors
Thomas A. Antkowiak
David F. Lawson
Russell W. Koch
Mark L. Stayer, Jr.
Assignee (at issue)
Bridgestone Firestone
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.