Granted Patent
Utility
US 6,656,811 · App. 10/036,763
Carbide emitter mask etch stop
Inventors:
Leland Swanson, Gregory E. Howard
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Dec 21, 2001
Inventors
Leland Swanson
Gregory E. Howard
Assignee (at issue)
Texas Instruments Incorporated
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.