Granted Patent
Utility
US 4,597,090 · App. 06/485,069
Block coded modulation system
Inventor:
George D. Forney, Jr.
Patented Case
View Patent ↗
Granted: Jun 24, 1986
Filed: Apr 14, 1983
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.