Granted Patent
Utility
US 5,706,339 · App. 08/346,654
Technique for use in processing personal telephone calls
Inventors:
Allen Eisdorfer, Jerry Eisdorfer
Patented Case
View Patent ↗
Granted: Jan 6, 1998
Filed: Nov 30, 1994
Inventors
Allen Eisdorfer
Jerry Eisdorfer
Assignee (at issue)
AT&T CORP.
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.