Granted Patent
Utility
US 4,415,062 · App. 06/427,212
Ladder foot
Inventor:
Jonathan L. Shaw
Patented Case
View Patent ↗
Granted: Nov 15, 1983
Filed: Sep 29, 1982
Inventor
Jonathan L. Shaw
Assignee (at issue)
Western Electric Company, Inc.
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.