Granted Patent
Utility
US 4,428,316 · App. 06/398,023
Feed system for a sewing machine
Inventors:
John Patricia, Jan Szostak
Patented Case
View Patent ↗
Granted: Jan 31, 1984
Filed: Jul 14, 1982
Inventors
John Patricia
Jan Szostak
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.