Granted Patent
Utility
US 4,282,293 · App. 06/162,588
Seals for electrochemical cells
Inventor:
Johannes A. van Lier
Patented Case
View Patent ↗
Granted: Aug 4, 1981
Filed: Jun 24, 1980
Inventor
Johannes A. van Lier
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.