Granted Patent
Utility
US 4,477,940 · App. 06/524,379
Heavy duty wiper arm
Inventor:
Terry M. Will
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Aug 18, 1983
Inventor
Terry M. Will
Assignee (at issue)
The Anderson Company of Indiana
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.