Granted Patent
Utility
US 6,315,683 · App. 09/496,269
Hollow solid golf ball
Inventors:
Kazunari Yoshida, Mikio Yamada
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Feb 1, 2000
Inventors
Kazunari Yoshida
Mikio Yamada
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.