Granted Patent
Utility
US 6,183,374 · App. 09/090,211
Golf club
Inventors:
Masahide Onuki, Makoto Yoshida
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Jun 4, 1998
Inventors
Masahide Onuki
Makoto Yoshida
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.