Granted Patent
Utility
US 6,815,875 · App. 09/795,240
Electron source having planar emission region and focusing structure
Inventors:
Huei Pei Kuo, Henryk Birecki, Si-Ty Lam, Steven Naberhuis
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Feb 27, 2001
Inventors
Huei Pei Kuo
Henryk Birecki
Si-Ty Lam
Steven Naberhuis
Assignee (at issue)
Hewlett-Packard Development Company, L.P.
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.