Granted Patent
Utility
US 4,665,488 · App. 06/678,896
Synchronizing wiper control
Inventors:
Donald E. Graham, James J. Kowalik, Alexander Kade
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Dec 6, 1984
Inventors
Donald E. Graham
James J. Kowalik
Alexander Kade
Assignee (at issue)
General Motors LLC
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.