Granted Patent
Utility
US 4,561,809 · App. 06/642,190
Cutting tool insert with chip breaker
Inventors:
Reuven Porat, Eliezer Nessel
Patented Case
View Patent ↗
Granted: Dec 31, 1985
Filed: Aug 20, 1984
Inventors
Reuven Porat
Eliezer Nessel
Assignee (at issue)
Iscar, Ltd.
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.