Granted Patent
Utility
US 6,111,780 · App. 09/325,645
Radiation hardened six transistor random access memory and memory device
Inventor:
Robert Christian Bertin
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Jun 4, 1999
Inventor
Robert Christian Bertin
Assignee (at issue)
LOCKHEED MARTIN 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.