Granted Patent
Utility
US 6,461,765 · App. 09/504,010
Metal-air cell housing with improved peripheral seal design
Inventor:
John Witzigreuter
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Feb 14, 2000
Inventor
John Witzigreuter
Assignee (at issue)
AER Energy Resources, Inc.
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.