Granted Patent
Utility
US 4,412,342 · App. 06/332,137
Clock synchronization system
Inventors:
Ashfaq R. Khan, Ivan L. Edwards
Patented Case
View Patent ↗
Granted: Oct 25, 1983
Filed: Dec 18, 1981
Inventors
Ashfaq R. Khan
Ivan L. Edwards
Assignee (at issue)
GTE Automatic Electric Labs 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.