Granted Patent
Utility
US 6,011,997 · App. 08/943,832
Time-division multiplex control unit I/O unit and programming system
Inventors:
George L. Cepynsky, Martin J. Durbin
Patented Case
View Patent ↗
Granted: Jan 4, 2000
Filed: Oct 3, 1997
Inventors
George L. Cepynsky
Martin J. Durbin
Assignee (at issue)
Technical Products Group, 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.