Granted Patent
Utility
US 5,559,873 · App. 08/355,963
Telephone privacy device with conference and indicator features
Inventors:
Samuel F. Wood, Gaylan Larson
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Dec 14, 1994
Inventors
Samuel F. Wood
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.