Granted Patent
Utility
US 5,998,936 · App. 08/155,519
Fire-initiation-safe lighting system
Inventor:
Ole K. Nilssen
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Nov 22, 1993
Inventor
Ole K. Nilssen
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.