Granted Patent
Utility
US 6,287,218 · App. 09/416,056
Solid golf ball
Inventor:
Keiji Ohama
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Oct 12, 1999
Inventor
Keiji Ohama
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.