Granted Patent
Utility
US 4,324,191 · App. 06/271,446
Auxiliary sewing machine motor braking
Inventor:
Jack Brown
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: Jun 8, 1981
Inventor
Jack Brown
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.