Granted Patent
Utility
US 5,649,847 · App. 08/699,996
Backplate of field emission device with self aligned focus structure and spacer wall locators
Inventor:
Duane A. Haven
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: Aug 20, 1996
Inventor
Duane A. Haven
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.