Granted Patent
Utility
US 5,490,199 · App. 07/839,972
Non-intrusive network-based analysis of facsimile transmissions
Inventors:
Richard C. Fuller, Thomas W. Goeddel, R. B. Heick, Martin Herzlinger, Subramanian Krishnamurthy
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Feb 21, 1992
Inventors
Richard C. Fuller
Thomas W. Goeddel
R. B. Heick
Martin Herzlinger
Subramanian Krishnamurthy
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.