Granted Patent
Utility
US 6,719,443 · App. 10/084,272
Electrically illuminated flame simulator
Inventors:
Robert A. Gutstein, Monita Liu
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Feb 27, 2002
Inventors
Robert A. Gutstein
Monita Liu
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.