Granted Patent
Utility
US 4,926,980 · App. 06/740,157
Automatic brake adjusting mechanism
Inventor:
James C. Cumming
Patented Case
View Patent ↗
Granted: May 22, 1990
Filed: Jun 3, 1985
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.