Granted Patent
Utility
US 4,442,507 · App. 06/237,428
Electrically programmable read-only memory stacked above a semiconductor substrate
Inventor:
Bruce B. Roesner
Patented Case
View Patent ↗
Granted: Apr 10, 1984
Filed: Feb 23, 1981
Inventor
Bruce B. Roesner
Assignee (at issue)
Burroughs, Inc.
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.