Granted Patent
Utility
US 6,142,887 · App. 09/027,482
Golf ball comprising a metal, ceramic, or composite mantle or inner layer
Inventors:
Michael J. Sullivan, R. Dennis Nesbitt
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Feb 20, 1998
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.