Granted Patent
Utility
US 4,458,615 · App. 06/478,742
Support structure for a sewing machine convertible bed extension
Inventor:
Kenneth D. Adams
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Mar 25, 1983
Inventor
Kenneth D. Adams
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.