Granted Patent
Utility
US 5,351,954 · App. 08/079,074
Magnetic ball carrier for a pinball game
Inventors:
Barry Oursler, Zofia Bil
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Jun 16, 1993
Inventors
Barry Oursler
Zofia Bil
Assignee (at issue)
Williams Electronics Games, Inc.
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.