Granted Patent
Utility
US 5,133,550 · App. 07/735,406
Football having raised ribs
Inventor:
John N. Handy
Patented Case
View Patent ↗
Granted: Jul 28, 1992
Filed: Jul 24, 1991
Inventor
John N. Handy
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.