Granted Patent
Utility
US 6,013,974 · App. 08/866,554
Electron-emitting device having focus coating that extends partway into focus openings
Inventors:
Duane A. Haven, Christopher J. Spindt, N. Johan Knall
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: May 30, 1997
Inventors
Duane A. Haven
Christopher J. Spindt
N. Johan Knall
Assignee (at issue)
Candescent Technologies 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.