Granted Patent
Utility
US 4,335,984 · App. 06/204,674
Metalcutting insert for roughing and finishing
Inventor:
Raymond T. Zweekly
Patented Case
View Patent ↗
Granted: Jun 22, 1982
Filed: Nov 5, 1980
Inventor
Raymond T. Zweekly
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.