Granted Patent
Utility
US 5,548,631 · App. 08/131,535
Method and apparatus for supporting at least two communication services in a communication system
Inventors:
Jay R. Krebs, Paul M. Erickson
Patented Case
View Patent ↗
Granted: Aug 20, 1996
Filed: Oct 1, 1993
Inventors
Jay R. Krebs
Paul M. Erickson
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.