Granted Patent
Utility
US 4,497,267 · App. 06/590,932
Low torque pattern selecting mechanism for a sewing machine
Inventors:
Jan Szostak, Henry Schaeflern, Walter H. W. Marsh
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Mar 19, 1984
Inventors
Jan Szostak
Henry Schaeflern
Walter H. W. Marsh
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.