Granted Patent
Utility
US 4,931,367 · App. 07/264,218
Low float technology battery
Inventors:
William B. Brecht, David O. Feder, Joseph M. McAndrews, Allan J. Williamson
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Oct 28, 1988
Inventors
William B. Brecht
David O. Feder
Joseph M. McAndrews
Allan J. Williamson
Assignee (at issue)
C & D Charter Power Systems, 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.