Granted Patent
Utility
US 4,680,773 · App. 06/792,766
Data telecommunications system and method utilizing a multi-mode modem
Inventor:
Anthony P. Amundson
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Oct 30, 1985
Inventor
Anthony P. Amundson
Assignee (at issue)
MICROCOM 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.