Granted Patent
Utility
US 4,473,340 · App. 06/314,224
Combined fluid pressure actuated fuel and oil pump
Inventor:
Frank J. Walsworth
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Oct 23, 1981
Inventor
Frank J. Walsworth
Assignee (at issue)
Outboard Marine Corporation
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.