Granted Patent
Utility
US 6,645,089 · App. 09/906,132
Golf ball
Inventors:
Masaya Tsunoda, Jun Ochi, Kouhei Takemura, Masahide Onuki, Masahiko Ueda
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Jul 17, 2001
Inventors
Masaya Tsunoda
Jun Ochi
Kouhei Takemura
Masahide Onuki
Masahiko Ueda
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.