Granted Patent
Utility
US 5,204,894 · App. 07/610,881
Personal electronic directory
Inventor:
Pamela Darden
Patented Case
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Granted: Apr 20, 1993
Filed: Nov 9, 1990
Inventor
Pamela Darden
Assignee (at issue)
Bell Atlantic Network Services
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.