Granted Patent
Utility
US 4,394,541 · App. 06/222,063
Three stage minimum configuration conditionally non-blocking matrix
Inventor:
Lewis J. Seiden
Patented Case
View Patent ↗
Granted: Jul 19, 1983
Filed: Jan 2, 1981
Inventor
Lewis J. Seiden
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.