Granted Patent
Utility
US 6,475,658 · App. 09/216,026
Air manager systems for batteries utilizing a diaphragm or bellows
Inventors:
Christopher Pedicini, Dennis P. Sieminski, Gary E. G. Gray, John Witzigreuter
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Dec 18, 1998
Inventors
Christopher Pedicini
Dennis P. Sieminski
Gary E. G. Gray
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.