Granted Patent
Utility
US 6,407,399 · App. 09/408,926
Uniformity correction for large area electron source
Inventor:
William R. Livesay
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Sep 30, 1999
Inventor
William R. Livesay
Assignee (at issue)
Electron Vision 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.