Granted Patent
Utility
US 6,213,894 · App. 09/040,456
Multi-layer golf ball
Inventors:
Michael J. Sullivan, John L. Nealon, Mark L. Binette
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Mar 18, 1998
Inventors
Michael J. Sullivan
John L. Nealon
Mark L. Binette
Assignee (at issue)
Spalding Sports Worldwide, Inc.
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.