Granted Patent
Utility
US 4,488,255 · App. 06/313,916
Processing register apparatus for use in digital signal processing systems
Inventors:
Dale L. Krisher, Sirus Chitsaz
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: Oct 22, 1981
Inventors
Dale L. Krisher
Sirus Chitsaz
Assignee (at issue)
International Telephone and Telegraph 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.