Granted Patent
Utility
US 4,952,905 · App. 07/282,974
Data communication system
Inventor:
Colin C. Oliver
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Nov 29, 1988
Inventor
Colin C. Oliver
Assignee (at issue)
EMI, LLC
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.