Granted Patent
Utility
US 4,833,649 · App. 07/093,931
Multiple port random access memory
Inventor:
Hans J. Greub
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Sep 8, 1987
Inventor
Hans J. Greub
Assignee (at issue)
Tektronix, 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.