Granted Patent
Utility
US 4,385,577 · App. 06/289,336
Sewing machine control mechanism mounting plate
Inventor:
Thomas Graham
Patented Case
View Patent ↗
Granted: May 31, 1983
Filed: Aug 3, 1981
Inventor
Thomas Graham
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.