Granted Patent
Utility
US 5,752,155 · App. 08/734,511
Green honed cutting insert and method of making the same
Inventors:
Alfred S. Gates, Jr., Bernard North, William R. Shaffer
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Oct 21, 1996
Inventors
Alfred S. Gates, Jr.
Bernard North
William R. Shaffer
Assignee (at issue)
KENNAMETAL INC.
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.