Granted Patent
Utility
US 4,863,291 · App. 07/220,381
Bearing assembly
Inventors:
Hooshang Heshmat, Paul T. Gorski
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Jul 12, 1988
Inventors
Hooshang Heshmat
Paul T. Gorski
Assignee (at issue)
Reliance Electric Limited
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.