Granted Patent
Utility
US 5,550,921 · App. 08/441,662
Stereo sound source for portable computer
Inventor:
Tommyca Freadman
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: May 15, 1995
Inventor
Tommyca Freadman
Assignee (at issue)
Sparkomatic Corp.
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.