Granted Patent
Utility
US 4,177,744 · App. 05/928,940
Digital override control of bight and feed in a sewing machine
Inventors:
John W. Wurst, William H. Dunn
Patented Case
View Patent ↗
Granted: Dec 11, 1979
Filed: Jul 28, 1978
Inventors
John W. Wurst
William H. Dunn
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.