Granted Patent
Utility
US 4,765,018 · App. 07/074,098
Wiper assembly with automatically extending wipe pattern
Inventor:
Harry C. Buchanan, Jr.
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: Jul 16, 1987
Inventor
Harry C. Buchanan, Jr.
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.