Granted Patent
Utility
US 6,793,588 · App. 10/707,847
Putter head
Inventors:
Larry G. Tang, Roger Cleveland, Richard C. Helmstetter, Augustin W. Rollinson, Wayne H. Byrne, Luke R. Williams
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Jan 16, 2004
Inventors
Larry G. Tang
Roger Cleveland
Richard C. Helmstetter
Augustin W. Rollinson
Wayne H. Byrne
Luke R. Williams
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.