Granted Patent
Utility
US 4,765,217 · App. 06/918,344
Insertable saw tooth
Inventor:
Andre Ludwig
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: Oct 14, 1986
Inventor
Andre Ludwig
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.