Granted Patent
Utility
US 4,459,927 · App. 06/560,292
Arrangement for signaling presser bar position
Inventors:
Marvin Kurland, Ferdinand P. Oliva, Terry L. Wilson
Patented Case
View Patent ↗
Granted: Jul 17, 1984
Filed: Dec 12, 1983
Inventors
Marvin Kurland
Ferdinand P. Oliva
Terry L. Wilson
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.