Granted Patent
Utility
US 4,321,741 · App. 06/120,692
Method for protecting the feed tube of a food processor
Inventor:
James E. Williams
Patented Case
View Patent ↗
Granted: Mar 30, 1982
Filed: Feb 11, 1980
Inventor
James E. Williams
Assignee (at issue)
Wilson Research & Development, 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.