Granted Patent
Utility
US 4,401,737 · App. 06/291,244
Protective active nitrides as additives to nonaqueous cathode materials
Inventor:
Ashok V. Joshi
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Aug 10, 1981
Inventor
Ashok V. Joshi
Assignee (at issue)
Rayovac 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.