Granted Patent
Utility
US 4,489,598 · App. 06/492,644
Tire rolling resistance measurement system
Inventors:
James C. Beebe, Barry D. Cargould
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: May 9, 1983
Inventors
James C. Beebe
Barry D. Cargould
Assignee (at issue)
Eagle-Picher Industries, Inc.
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.