Granted Patent
Utility
US 4,497,020 · App. 06/279,204
Selective mapping system and method
Inventor:
Thomas J. Gilligan
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Jun 30, 1981
Inventor
Thomas J. Gilligan
Assignee (at issue)
Ampex 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.