Granted Patent
Utility
US 4,894,296 · App. 07/113,708
Cathode for zinc air cells
Inventors:
Alex Borbely, Jaynal A. Molla
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Oct 27, 1987
Inventors
Alex Borbely
Jaynal A. Molla
Assignee (at issue)
Duracell Inc.
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.