Granted Patent
Utility
US 4,623,599 · App. 06/749,544
Double-grooved gasket for galvanic cells
Inventor:
Harry Vourlis
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Jun 27, 1985
Inventor
Harry Vourlis
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.