Granted Patent
Utility
US 6,045,455 · App. 08/792,957
Inertially tailored golf club heads
Inventors:
John B. Kosmatka, Richard C. Helmstetter, Thomas R. Hilton
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Jan 22, 1997
Inventors
John B. Kosmatka
Richard C. Helmstetter
Thomas R. Hilton
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.