Granted Patent
Utility
US 5,418,321 · App. 07/991,059
Audio channel system for providing an analog signal corresponding to a sound waveform in a computer system
Inventors:
Glenn J. Keller, Timothy J. McDonald, James Redfield, Robert SCHMID
Patented Case
View Patent ↗
Granted: May 23, 1995
Filed: Dec 15, 1992
Inventors
Glenn J. Keller
Timothy J. McDonald
James Redfield
Robert SCHMID
Assignee (at issue)
Commodore Electronics 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.