Granted Patent
Utility
US 6,204,573 · App. 08/177,878
Method and circuit for maintaining charge in a backup battery
Inventors:
Lawrence Green, Richard L. Hammon
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Jan 5, 1994
Inventors
Lawrence Green
Richard L. Hammon
Assignee (at issue)
Motorola, 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.