Granted Patent
Utility
US 4,497,876 · App. 06/475,735
Corrosion resistant metal composite with zinc and chromium coating
Inventor:
William E. Kidon
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Mar 16, 1983
Inventor
William E. Kidon
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.