Granted Patent
Utility
US 4,986,545 · App. 07/449,774
Golf ball compositions
Inventor:
Michael J. Sullivan
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: Dec 13, 1989
Inventor
Michael J. Sullivan
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.