Granted Patent
Utility
US 5,789,103 · App. 08/837,286
Battery separator and method of making
Inventors:
James Young, Francis E. Alexander, Daniel E. Weerts
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Apr 11, 1997
Inventors
James Young
Francis E. Alexander
Daniel E. Weerts
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.