Granted Patent
Utility
US 6,137,261 · App. 09/013,409
Rechargeable battery maintenance and testing system
Inventors:
Wayne D. Kurle, Stephen B. Johnson, Rockland W. Nordness, Stephen L. Firman, Douglas M. Gustavson
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Jan 26, 1998
Inventors
Wayne D. Kurle
Stephen B. Johnson
Rockland W. Nordness
Stephen L. Firman
Douglas M. Gustavson
Assignee (at issue)
Physio-Control Manufacturing 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.