Granted Patent
Utility
US 4,260,669 · App. 06/130,368
Alkaline-MnO.sub.2 cell having a zinc powder-gel anode containing starch graft copolymer
Inventor:
Catherine A. Kerg
Patented Case
View Patent ↗
Granted: Apr 7, 1981
Filed: Mar 14, 1980
Inventor
Catherine A. Kerg
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.