Granted Patent
Utility
US 5,757,899 · App. 08/921,979
Call screening using subscriber specified timers and schedules
Inventors:
Joni R. Boulware, Peggy S. Schwend, Joshua D. Staller
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Aug 28, 1997
Inventors
Joni R. Boulware
Peggy S. Schwend
Joshua D. Staller
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.