Granted Patent
Utility
US 6,741,043 · App. 10/261,011
Ballast with adaptive end-of-lamp-life protection
Inventor:
Himamshu Prasad
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Sep 30, 2002
Inventor
Himamshu Prasad
Assignee (at issue)
OSRAM SYLVANIA 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.