Granted Patent
Utility
US 4,864,556 · App. 07/166,931
Synchronization arrangements for a digital telecommunications exchange system
Inventors:
Geoffrey Chopping, Milan Maric
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Mar 11, 1988
Inventors
Geoffrey Chopping
Milan Maric
Assignee (at issue)
The Plessey Company PLC
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.