Granted Patent
Utility
US 4,800,526 · App. 07/047,350
Memory element for information storage and retrieval system and associated process
Inventor:
David F. Lewis
Patented Case
View Patent ↗
Granted: Jan 24, 1989
Filed: May 8, 1987
Inventor
David F. Lewis
Assignee (at issue)
GAF 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.