Granted Patent
Utility
US 4,894,844 · App. 07/062,497
Signal constellations
Inventor:
George D. Forney, Jr.
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Jun 12, 1987
Inventor
George D. 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.