Granted Patent
Utility
US 4,477,291 · App. 06/585,148
Metal-coating a metallic substrate
Inventor:
Alfred R. E. Singer
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Mar 1, 1984
Inventor
Alfred R. E. Singer
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.