Granted Patent
Utility
US 4,583,419 · App. 06/669,714
Torque transmitting handwheel clip-on member for a sewing machine
Inventor:
William Weisz
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Nov 9, 1984
Inventor
William Weisz
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.