Granted Patent
Utility
US 4,142,615 · App. 05/657,983
Wheel drive assembly
Inventors:
Peter Sidles, Jr., Aleksander Mankowski
Patented Case
View Patent ↗
Granted: Mar 6, 1979
Filed: Feb 13, 1976
Inventors
Peter Sidles, Jr.
Aleksander Mankowski
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.