Granted Patent
Utility
US 4,768,178 · App. 07/017,666
High precision radio signal controlled continuously updated digital clock
Inventors:
Charles Clinton Conklin, Stephen O. Jeppson, Ronald W. Mongeon, David Schachter, Philip M. Spira, Paul L. Williams
Patented Case
View Patent ↗
Granted: Aug 30, 1988
Filed: Feb 24, 1987
Inventors
Charles Clinton Conklin
Stephen O. Jeppson
Ronald W. Mongeon
David Schachter
Philip M. Spira
Paul L. Williams
Assignee (at issue)
Precision Standard Time, 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.