Granted Patent
Utility
US 6,547,677 · App. 10/002,641
Multi-layered core golf ball
Inventors:
Michael J. Sullivan, Christopher Cavallaro, Jeffrey L. Dalton
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Nov 28, 2001
Inventors
Michael J. Sullivan
Christopher Cavallaro
Jeffrey L. Dalton
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.