Granted Patent
Utility
US 4,346,791 · App. 06/193,511
Friction brake
Inventor:
James C. Cumming
Patented Case
View Patent ↗
Granted: Aug 31, 1982
Filed: Oct 2, 1980
Inventor
James C. Cumming
Assignee (at issue)
Rockwell International 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.