Granted Patent
Utility
US 6,719,646 · App. 09/490,918
Polyurethane covered three-piece golf ball
Inventors:
John Calabria, Sanjay Kuttappa, Matthew B. Stanczak, Jens John, George Wallace, Lane D. Lemons
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Jan 25, 2000
Inventors
John Calabria
Sanjay Kuttappa
Matthew B. Stanczak
Jens John
George Wallace
Lane D. Lemons
Assignee (at issue)
Dunlop Slazenger Sports
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.