Granted Patent
Utility
US 4,679,968 · App. 06/878,774
Indexable cutter insert
Inventors:
Osamu Tsujimura, Ryoei Hasegawa, Masayuki Ohkawa
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Jun 25, 1986
Inventors
Osamu Tsujimura
Ryoei Hasegawa
Masayuki Ohkawa
Assignee (at issue)
Mitsubishi Kinzoku Kabushiki Kaisha
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.