Granted Patent
Utility
US 4,473,919 · App. 06/500,545
Windshield wiper blade
Inventor:
Charles Fritz
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Jun 2, 1983
Inventor
Charles Fritz
Assignee (at issue)
Smear Clear Wiper 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.