Granted Patent
Utility
US 5,354,822 · App. 07/941,558
Methods for preparing functionalized polymer and elastomeric compounds having reduced hysteresis
Inventors:
Thomas A. Antkowiak, David F. Lawson, Russell W. Koch, Mark L. Stayer, Jr.
Patented Case
View Patent ↗
Granted: Oct 11, 1994
Filed: Sep 8, 1992
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.