Granted Patent
Utility
US 6,120,674 · App. 08/884,701
Electrochemical removal of material in electron-emitting device
Inventors:
John D. Porter, Gabriela S. Chakarova
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: Jun 30, 1997
Inventors
John D. Porter
Gabriela S. Chakarova
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.