Granted Patent
Utility
US 6,530,850 · App. 09/874,201
Golf ball
Inventor:
Takahiro Sajima
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: Jun 6, 2001
Inventor
Takahiro Sajima
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.