Granted Patent
Utility
US 4,686,156 · App. 06/786,734
Coated cemented carbide cutting tool
Inventors:
J. Gary Baldoni, Charles D'Angelo, III
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Oct 11, 1985
Inventors
J. Gary Baldoni
Charles D'Angelo, III
Assignee (at issue)
GTE SERVICE CORPORATION
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.