Granted Patent
Utility
US 6,336,872 · App. 09/472,892
Multi-piece solid golf ball
Inventors:
Keiji Moriyama, Takashi Sasaki, Takeshi Asakura, Satoshi Iwami
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Dec 28, 1999
Inventors
Keiji Moriyama
Takashi Sasaki
Takeshi Asakura
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.