Granted Patent
Utility
US 4,682,987 · App. 06/755,316
Method and composition for producing hard surface carbide insert tools
Inventors:
William J. Brady, Harlan U. Anderson
Patented Case
View Patent ↗
Granted: Jul 28, 1987
Filed: Jul 15, 1985
Inventors
William J. Brady
Harlan U. Anderson
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.