Granted Patent
Utility
US 5,820,483 · App. 08/783,582
Reduced weight golf club shafts
Inventors:
Thomas W. Preece, Herb Reyes, J. Andrew Galloway
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Jan 13, 1997
Inventors
Thomas W. Preece
Herb Reyes
J. Andrew Galloway
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.