Granted Patent
Utility
US 6,685,580 · App. 10/163,714
Three-layer cover for a golf ball including a thin dense layer
Inventor:
Michael J. Sullivan
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Jun 5, 2002
Inventor
Michael J. Sullivan
Assignee (at issue)
Acushnet Company
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.