Granted Patent
Utility
US 6,489,401 · App. 09/859,455
One-piece golf ball
Inventor:
Seiichiro Endo
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: May 18, 2001
Inventor
Seiichiro Endo
Assignee (at issue)
SUMITOMO RUBBER INDUSTRIES, LTD.
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.