Granted Patent
Utility
US 5,655,017 · App. 08/401,389
Portable telephone with speakerphone
Inventor:
David A. Fishman
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Mar 9, 1995
Inventor
David A. Fishman
Assignee (at issue)
LUCENT TECHNOLOGIES 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.