Granted Patent
Utility
US 5,790,946 · App. 08/424,827
Wake up device for a communications system
Inventor:
Robert R. Rotzoll
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Apr 19, 1995
Inventor
Robert R. Rotzoll
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.