Granted Patent
Utility
US 6,642,632 · App. 09/881,305
Efficient battery transfer circuit
Inventors:
Christopher Lucas, Scott Richard Burton
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Jun 13, 2001
Inventors
Christopher Lucas
Scott Richard Burton
Assignee (at issue)
MITEL KNOWLEDGE 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.