Granted Patent
Utility
US 4,505,213 · App. 06/600,929
Stitch length control for hand operable sewing machine
Inventor:
Karl H. Killinger
Patented Case
View Patent ↗
Granted: Mar 19, 1985
Filed: Apr 16, 1984
Inventor
Karl H. Killinger
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.