Granted Patent
Utility
US 6,542,591 · App. 09/627,030
Method and system for caller identification callback lists
Inventors:
Hatim Yousef Amro, George Kraft, IV
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jul 27, 2000
Inventors
Hatim Yousef Amro
George Kraft, IV
Assignee (at issue)
International Business Machines 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.