Granted Patent
Utility
US 5,115,411 · App. 07/534,081
Dual port memory system
Inventors:
William J. Kass, Michael R. Hilley
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Jun 6, 1990
Inventors
William J. Kass
Michael R. Hilley
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.