Granted Patent
Utility
US 4,137,378 · App. 05/802,182
Calcium-strontium-lead grid alloy for use in lead-acid batteries
Inventors:
John Nees, Dale A. Bailey
Patented Case
View Patent ↗
Granted: Jan 30, 1979
Filed: May 31, 1977
Inventors
John Nees
Dale A. Bailey
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.