Granted Patent
Utility
US 5,809,417 · App. 08/333,705
Cordless telephone arranged for operating with multiple portable units in a frequency hopping system
Inventors:
William J. Nealon, Heidi Anne Rajan
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Nov 3, 1994
Inventors
William J. Nealon
Heidi Anne Rajan
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.