Granted Patent
Utility
US 4,244,451 · App. 06/023,930
Disc brake and pin assembly therefor
Inventor:
Donald D. Johannesen
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Mar 26, 1979
Inventor
Donald D. Johannesen
Assignee (at issue)
Bendix 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.