Granted Patent
Utility
US 6,493,419 · App. 09/884,229
Optically driven therapeutic radiation source having a spiral-shaped thermionic cathode
Inventor:
Mark Dinsmore
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Jun 19, 2001
Inventor
Mark Dinsmore
Assignee (at issue)
Photoelectron 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.