Granted Patent
Utility
US 6,540,579 · App. 09/855,692
Convertible activity toy
Inventors:
Domenic T. Gubitosi, Seth Frankel, Christopher D. Cimerman
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: May 16, 2001
Inventors
Domenic T. Gubitosi
Seth Frankel
Christopher D. Cimerman
Assignee (at issue)
MATTEL, 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.