Granted Patent
Utility
US 6,819,908 · App. 09/796,275
Limiting message diffusion between mobile devices
Inventor:
Michael P. Spratt
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Feb 28, 2001
Inventor
Michael P. Spratt
Assignee (at issue)
Hewlett-Packard Development Company, L.P.
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.