Granted Patent
Utility
US 4,876,582 · App. 06/490,743
Crystallized silicon-on-insulator nonvolatile memory device
Inventor:
John L. Janning
Patented Case
View Patent ↗
Granted: Oct 24, 1989
Filed: May 2, 1983
Inventor
John L. Janning
Assignee (at issue)
NCR 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.