Granted Patent
Utility
US 5,425,055 · App. 07/980,541
Digital radio modulator
Inventor:
David M. Blaker
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Nov 23, 1992
Inventor
David M. Blaker
Assignee (at issue)
Nokia Mobile Phones (UK) Limited
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.