Granted Patent
Utility
US 4,923,056 · App. 07/312,994
Method of increasing the service life of aircraft carbon disk brakes
Inventor:
John Nedelk
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Feb 21, 1989
Inventor
John Nedelk
Assignee (at issue)
Aircraft Braking Systems Corporation
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.