Granted Patent
Utility
US 4,965,863 · App. 07/104,758
Gallium arsenide depletion made MESFIT logic cell
Inventor:
Seymour R. Cray
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Oct 2, 1987
Inventor
Seymour R. Cray
Assignee (at issue)
Cray Computer 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.