Granted Patent
Utility
US 4,011,920 · App. 05/607,511
Synchronized vehicle fluid drive system
Inventors:
Donald L. Bianchetta, Jesse L. Field, Jr.
Patented Case
View Patent ↗
Granted: Mar 15, 1977
Filed: Aug 25, 1975
Inventors
Donald L. Bianchetta
Jesse L. Field, Jr.
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.