Granted Patent
Utility
US 5,889,645 · App. 08/838,884
Energy preservation and transfer mechanism
Inventors:
Andrew S. Kadah, Andrew M. Nguyen
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Apr 14, 1997
Inventors
Andrew S. Kadah
Andrew M. Nguyen
Assignee (at issue)
International Controls and Measurement Corp.
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.