Granted Patent
Utility
US 6,720,864 · App. 09/624,402
Wireless on-call communication system for management of on-call messaging and method therefor
Inventors:
Poh-T'in Wong, Robert Edward Barratt, Edward L. Ehmke
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Jul 24, 2000
Inventors
Poh-T'in Wong
Robert Edward Barratt
Edward L. Ehmke
Assignee (at issue)
Motorola, 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.