Granted Patent
Utility
US 4,294,480 · App. 06/117,687
Safety guards and methods for manually feeding workpieces to assembly machines
Inventors:
William Burns, William Sankey
Patented Case
View Patent ↗
Granted: Oct 13, 1981
Filed: Feb 1, 1980
Inventors
William Burns
William Sankey
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.