Granted Patent
Utility
US 4,475,475 · App. 06/474,220
Gear attaching arrangement for looptaker drive shaft
Inventor:
Thaddeus J. Zylbert
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Mar 11, 1983
Inventor
Thaddeus J. Zylbert
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.