Granted Patent
Utility
US 4,156,397 · App. 05/937,235
Power limiting arrangement in a sewing machine
Inventors:
John W. Wurst, Philip F. Minalga
Patented Case
View Patent ↗
Granted: May 29, 1979
Filed: Aug 28, 1978
Inventors
John W. Wurst
Philip F. Minalga
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.