Granted Patent
Utility
US 4,539,271 · App. 06/595,367
Galvanic cell having a coiled electrode assembly
Inventor:
Grace Y. Crabtree
Patented Case
View Patent ↗
Granted: Sep 3, 1985
Filed: Mar 30, 1984
Inventor
Grace Y. Crabtree
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.