Granted Patent
Utility
US 4,589,089 · App. 06/275,131
Computer-peripheral interface for a game apparatus
Inventor:
Jeffrey E. Frederiksen
Patented Case
View Patent ↗
Granted: May 13, 1986
Filed: Jun 18, 1981
Inventor
Jeffrey E. Frederiksen
Assignee (at issue)
Bally Manufacturing 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.