Granted Patent
Utility
US 6,204,609 · App. 09/482,675
Enhanced inverter for powering an EL lamp
Inventor:
Robert A. Kimball
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Jan 13, 2000
Inventor
Robert A. Kimball
Assignee (at issue)
Durel 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.