Granted Patent
Utility
US 4,649,090 · App. 06/821,430
Seal tab for a metal-air electrochemical cell
Inventors:
John Edward Oltman, Robert B. Dopp, Denis D. Carpenter
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Jan 22, 1986
Inventors
John Edward Oltman
Robert B. Dopp
Denis D. Carpenter
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.