Granted Patent
Utility
US 4,280,595 · App. 06/106,465
Positive brake for a vehicle wheel
Inventors:
Rayford W. Timms, Raymond C. Waidmann
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Dec 26, 1979
Inventors
Rayford W. Timms
Raymond C. Waidmann
Assignee (at issue)
AMERICAN AIR FILTER COMPANY, 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.