Granted Patent
Utility
US 6,430,691 · App. 09/336,948
Stand-alone telecommunications security device
Inventors:
Frank J. Di Santo, Denis A. Krusos, Edward Lewit
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Jun 21, 1999
Inventors
Frank J. Di Santo
Denis A. Krusos
Edward Lewit
Assignee (at issue)
Copytele, Inc.
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.