Granted Patent
Utility
US 4,359,511 · App. 06/334,895
Battery separator material
Inventor:
Stanley J. Strzempko
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Dec 28, 1981
Inventor
Stanley J. Strzempko
Assignee (at issue)
Texon LP
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.