Granted Patent
Utility
US 6,309,312 · App. 08/966,446
Golf ball comprising a metal mantle having a hollow interior
Inventors:
Michael J. Sullivan, R. Dennis Nesbitt
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Nov 7, 1997
Inventors
Michael J. Sullivan
R. Dennis Nesbitt
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.