Granted Patent
Utility
US 6,648,779 · App. 09/985,688
Golf ball and manufacturing method thereof
Inventor:
Masatoshi Yokota
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Nov 5, 2001
Inventor
Masatoshi Yokota
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.