Granted Patent
Utility
US 4,486,514 · App. 06/595,365
Hermetically sealed galvanic cell having safety vent construction
Inventor:
Earl Chaney
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Mar 30, 1984
Inventor
Earl Chaney
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.