Granted Patent
Utility
US 6,317,488 · App. 09/436,912
Call waiting-caller identification notification device
Inventors:
Paul F. DePond, Gaylan Larson
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Nov 9, 1999
Inventors
Paul F. DePond
Gaylan Larson
Assignee (at issue)
Notify Corporation
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.