Granted Patent
Utility
US 5,440,645 · App. 08/148,107
Computer speaker
Inventor:
Tommyca Freadman
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Nov 4, 1993
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.