Granted Patent
Utility
US 4,808,015 · App. 07/106,509
Clutch release bearing assembly including a double-acting sliding bore sleeve
Inventor:
Bryce W. Babcock
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Oct 6, 1987
Inventor
Bryce W. Babcock
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.