Granted Patent
Utility
US 4,446,621 · App. 06/437,716
Fabric repairing tool with cylindrical sheet metal cutter
Inventor:
Wesley R. Peterson
Patented Case
View Patent ↗
Granted: May 8, 1984
Filed: Oct 29, 1982
Inventor
Wesley R. Peterson
Assignee (at issue)
The Singer Company Limited
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.