Granted Patent
Utility
US 4,894,592 · App. 07/197,351
Electrodeless lamp energized by microwave energy
Inventors:
Robert Ervin, Joseph Francis Perret, Jr.
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: May 23, 1988
Inventors
Robert Ervin
Joseph Francis Perret, Jr.
Assignee (at issue)
Fusion Systems 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.