Granted Patent
Utility
US 4,181,472 · App. 05/859,875
Liquid dispensing windshield washer pump
Inventor:
Bernard C. Sharp
Patented Case
View Patent ↗
Granted: Jan 1, 1980
Filed: Dec 12, 1977
Inventor
Bernard C. Sharp
Assignee (at issue)
Parker-Hannifin 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.