Granted Patent
Utility
US 6,794,074 · App. 09/976,119
Air manager for metal-air cells
Inventors:
Viet Vu, Paul Cheeseman, Marc Syvertsen, John A. Thompson, Christopher Pedicini, John Witzigreuter
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Oct 12, 2001
Inventors
Viet Vu
Paul Cheeseman
Marc Syvertsen
John A. Thompson
Christopher Pedicini
John Witzigreuter
Assignee (at issue)
Rayovac Corporation
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.