Granted Patent
Utility
US 6,405,031 · App. 09/222,136
Wireless telephone system, telephone and method
Inventors:
Randice Lisa Altschul, Lee S. Volpe
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Dec 29, 1998
Inventors
Randice Lisa Altschul
Lee S. Volpe
Assignee (at issue)
Dieceland Technologies Corp.
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.