Granted Patent
Utility
US 4,530,423 · App. 06/538,398
Disc brake including tie bar on stationary torque receiving member
Inventor:
Irving R. Ritsema
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Oct 3, 1983
Inventor
Irving R. Ritsema
Assignee (at issue)
ALLIED CONSULTING, INC.
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.