Granted Patent
Utility
US 6,234,917 · App. 09/148,079
Golf ball
Inventor:
Takeshi Asakura
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Sep 4, 1998
Inventor
Takeshi Asakura
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.