Granted Patent
Utility
US 5,619,250 · App. 08/480,930
Operating system for interactive television system set top box utilizing dynamic system upgrades
Inventors:
Stephen R. McClellan, Eric Miller
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Jun 7, 1995
Inventors
Stephen R. McClellan
Eric Miller
Assignee (at issue)
Microware Systems Corporation
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.