Granted Patent
Utility
US 4,344,139 · App. 06/245,245
Method and apparatus for controlling differentially driven wheel slip
Inventors:
Robert G. Miller, Allen D. Myers, Weldon L. Phelps, Alfred W. Sieving
Patented Case
View Patent ↗
Granted: Aug 10, 1982
Filed: May 7, 1980
Inventors
Robert G. Miller
Allen D. Myers
Weldon L. Phelps
Alfred W. Sieving
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.