Granted Patent
Utility
US 6,068,944 · App. 09/094,924
Air distributors for metal-air cells
Inventor:
John Witzigreuter
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Jun 15, 1998
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.