Granted Patent
Utility
US 4,959,842 · App. 07/181,203
Signal constellations
Inventor:
G. David Forney, Jr.
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Apr 13, 1988
Inventor
G. David Forney, Jr.
Assignee (at issue)
Codex 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.