Granted Patent
Utility
US 4,355,964 · App. 06/251,526
Gear pump having fluid deaeration capability
Inventors:
Scott A. Rodibaugh, Delwin E. Cobb
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Aug 22, 1980
Inventors
Scott A. Rodibaugh
Delwin E. Cobb
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.