Granted Patent
Utility
US 4,476,202 · App. 06/391,421
Two-piece cover-seal construction for galvanic cells
Inventor:
John A. Wesner
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Jun 23, 1982
Inventor
John A. Wesner
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.