Granted Patent
Utility
US 4,609,794 · App. 06/771,100
Printed circuit switch for windshield wiper motor
Inventor:
David L. Porter
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Aug 30, 1985
Inventor
David L. Porter
Assignee (at issue)
Ford Motor Company
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.