Granted Patent
Utility
US 6,422,952 · App. 09/708,500
Golf ball
Inventors:
Kiyoto Maruoka, Noritoshi Nakagawa
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Nov 9, 2000
Inventors
Kiyoto Maruoka
Noritoshi Nakagawa
Assignees (at issue)
Noritoshi Nakagawa
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.