Granted Patent
Utility
US 4,281,782 · App. 06/191,962
Button sewing device
Inventors:
Walter H. W. Marsh, Michael J. Brienza
Patented Case
View Patent ↗
Granted: Aug 4, 1981
Filed: Sep 29, 1980
Inventors
Walter H. W. Marsh
Michael J. Brienza
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.