Granted Patent
Utility
US 4,689,801 · App. 06/540,220
Microprocessor FSK data communications module
Inventors:
Mark E. Nurczyk, Patrick J. Wilson, Tony J. Wood
Patented Case
View Patent ↗
Granted: Aug 25, 1987
Filed: Oct 11, 1983
Inventors
Mark E. Nurczyk
Patrick J. Wilson
Tony J. Wood
Assignee (at issue)
American Standard Inc.
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.