Granted Patent
Utility
US 5,679,479 · App. 08/646,764
Battery separator
Inventors:
James Young, Francis E. Alexander
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: May 8, 1996
Inventors
James Young
Francis E. Alexander
Assignee (at issue)
Amtek Research International LLC
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.