Granted Patent
Utility
US 5,567,526 · App. 08/542,200
Cemented tungsten carbide substrates having adherent diamond films coated thereon
Inventors:
Michael G. Peters, Robert H. Cummings
Patented Case
View Patent ↗
Granted: Oct 22, 1996
Filed: Oct 11, 1995
Inventors
Michael G. Peters
Robert H. Cummings
Assignee (at issue)
National Center for Manufacturing Sciences
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.