Granted Patent
Utility
US 6,815,521 · App. 10/262,942
Multi-piece golf ball
Inventor:
Satoshi Iwami
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Oct 3, 2002
Inventor
Satoshi Iwami
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.