Granted Patent
Utility
US 4,375,086 · App. 06/150,275
Volatile/non-volatile dynamic RAM system
Inventor:
Armand J. van Velthoven
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: May 15, 1980
Inventor
Armand J. van Velthoven
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.