Granted Patent
Utility
US 4,434,729 · App. 06/221,098
Continuous monogrammer
Inventor:
Donald R. Davidson
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Dec 29, 1980
Inventor
Donald R. Davidson
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.