Granted Patent
Utility
US 4,361,101 · App. 06/275,576
Pocket button attaching device
Inventors:
Walter H. W. Marsh, William Kahan
Patented Case
View Patent ↗
Granted: Nov 30, 1982
Filed: Jun 22, 1981
Inventors
Walter H. W. Marsh
William Kahan
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.