Granted Patent
Utility
US 6,319,087 · App. 09/234,545
Variable performance toys
Inventor:
Albert J. Ferrigno
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Jan 21, 1999
Inventor
Albert J. Ferrigno
Assignee (at issue)
Fisher-Price
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.