Granted Patent
Utility
US 4,818,628 · App. 07/091,339
Process for making composite bearing material produced thereby
Inventors:
Robert G. Alexander, George C. Pratt
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Aug 31, 1987
Inventors
Robert G. Alexander
George C. Pratt
Assignee (at issue)
Federal-Mogul LLC
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.