Granted Patent
Utility
US 5,978,672 · App. 08/720,089
Mobility extended telephone application programming interface and method of use
Inventors:
Peter Hartmaier, William E. Gossman
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Sep 27, 1996
Inventors
Peter Hartmaier
William E. Gossman
Assignee (at issue)
Global Mobility Systems, 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.