Granted Patent
Utility
US 4,738,747 · App. 06/888,293
Process for etching zirconium metallic objects
Inventor:
Armand J. Panson
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Jul 22, 1986
Inventor
Armand J. Panson
Assignee (at issue)
Westinghouse Electric Company LLC
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.