Granted Patent
Utility
US 5,908,354 · App. 08/795,152
Programmable sound card for electronic devices
Inventor:
Douglas M. Okuniewicz
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Feb 7, 1997
Inventor
Douglas M. Okuniewicz
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.