Granted Patent
Utility
US 6,724,354 · App. 09/580,138
Illumination systems for eyeglass and facemask display systems
Inventors:
Mark B. Spitzer, John O. Crawford
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: May 30, 2000
Inventors
Mark B. Spitzer
John O. Crawford
Assignee (at issue)
The Microoptical 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.