Granted Patent
Utility
US 4,624,348 · App. 06/306,574
Roller retainer for brake assembly
Inventor:
William J. Williams
Patented Case
View Patent ↗
Granted: Nov 25, 1986
Filed: Sep 28, 1981
Inventor
William J. Williams
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.