Granted Patent
Utility
US 4,336,437 · App. 06/206,758
Method of extrusion-fusion welding of lead parts through an aperture in a battery case
Inventor:
William J. Eberle
Patented Case
View Patent ↗
Granted: Jun 22, 1982
Filed: Nov 14, 1980
Inventor
William J. Eberle
Assignee (at issue)
General Battery 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.