Granted Patent
Utility
US 6,815,888 · App. 09/782,204
Halogen lamps, fill material and methods of dosing halogen lamps
Inventor:
Steven C. Hansen
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Feb 14, 2001
Inventor
Steven C. Hansen
Assignee (at issue)
Advanced Lighting Technologies, 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.