Granted Patent
Utility
US 4,091,178 · App. 05/829,925
Rechargeable alkaline MnO.sub.2 -zinc cell
Inventor:
Karl Kordesch
Patented Case
View Patent ↗
Granted: May 23, 1978
Filed: Sep 1, 1977
Inventor
Karl Kordesch
Assignee (at issue)
Union Carbide 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.