Granted Patent
Utility
US 5,617,471 · App. 08/451,074
Telecommunications system for transferring a telephone call
Inventors:
Wesley D. Rogers, Louis G. Gottlieb, Saleem R. Molani, Gregory W. Sedlock, Roger P. Engdahl
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: May 25, 1995
Inventors
Wesley D. Rogers
Louis G. Gottlieb
Saleem R. Molani
Gregory W. Sedlock
Roger P. Engdahl
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.