Granted Patent
Utility
US 4,783,756 · App. 06/911,156
Sampled data tone control system
Inventor:
Todd J. Christopher
Patented Case
View Patent ↗
Granted: Nov 8, 1988
Filed: Sep 24, 1986
Inventor
Todd J. Christopher
Assignee (at issue)
RCA Licensing 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.