Granted Patent
Utility
US 4,698,269 · App. 06/861,004
Sintered, corrosion-resistant powdered metal product and its manufacture
Inventors:
Michael J. Narusch, Jr., Stanley G. LeBail
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: May 8, 1986
Inventors
Michael J. Narusch, Jr.
Stanley G. LeBail
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.