Granted Patent
Utility
US 4,344,633 · App. 06/266,447
Gasket for electrolytic cell
Inventor:
Andrew J. Niksa
Patented Case
View Patent ↗
Granted: Aug 17, 1982
Filed: May 22, 1981
Inventor
Andrew J. Niksa
Assignee (at issue)
Diamond Shamrock 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.