Granted Patent
Utility
US 4,401,043 · App. 06/410,672
Double pointed looper actuating mechanism for chain stitch sewing machine
Inventor:
Wesley R. Peterson
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Aug 23, 1982
Inventor
Wesley R. Peterson
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.