Granted Patent
Utility
US 6,216,000 · App. 08/698,489
System and method for registering wireless telephones to selected wirelines of the public switched telephone network
Inventor:
Mark S. Blumhardt
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Aug 15, 1996
Inventor
Mark S. Blumhardt
Assignee (at issue)
U S West, 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.