Granted Patent
Utility
US 6,544,131 · App. 09/248,117
Multi-piece solid golf ball having good shot feel
Inventors:
Yoshinori Sano, Hiroaki Tanaka
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Feb 11, 1999
Inventors
Yoshinori Sano
Hiroaki Tanaka
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.