Granted Patent
Utility
US 4,470,640 · App. 06/538,961
Control system with selective pressure staging to the spring applied, pressure released brake
Inventors:
Kenneth F. Golan, Marvin Schneider
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Sep 11, 1981
Inventors
Kenneth F. Golan
Marvin Schneider
Assignee (at issue)
Caterpillar Tractor Co.
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.