Granted Patent
Utility
US 6,793,864 · App. 09/018,283
Polyurethane material for two and three piece golf balls
Inventors:
Pijush Dewanjee, Michael J. Tzivanis
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Feb 4, 1998
Inventors
Pijush Dewanjee
Michael J. Tzivanis
Assignee (at issue)
DUNLOP SPORTS CO., 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.