Granted Patent
Utility
US 5,033,882 · App. 07/484,360
Circuit for conserving power of a backup battery
Inventors:
James L. Vanderpool, James M. Bain
Patented Case
View Patent ↗
Granted: Jul 23, 1991
Filed: Feb 22, 1990
Inventors
James L. Vanderpool
James M. Bain
Assignee (at issue)
Monarch Marking 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.