Granted Patent
Utility
US 6,582,321 · App. 09/683,906
Golf club head
Inventors:
J. Andrew Galloway, Richard C. Helmstetter, Alan Hocknell, Ronald C. Boyce, Homer E. Aguinaldo, Curtis S. Woolley
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Feb 28, 2002
Inventors
J. Andrew Galloway
Richard C. Helmstetter
Alan Hocknell
Ronald C. Boyce
Homer E. Aguinaldo
Curtis S. Woolley
Assignee (at issue)
Callaway Golf 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.