Granted Patent
Utility
US 5,924,939 · App. 09/001,812
Golf club head with a strike face having a first insert within a second insert
Inventors:
Robert M. Grace, Lauro C. Cadorniga, Harold Max Parker, Jr., William E. Bartlett
Patented Case
View Patent ↗
Granted: Jul 20, 1999
Filed: Dec 31, 1997
Inventors
Robert M. Grace
Lauro C. Cadorniga
Harold Max Parker, Jr.
William E. Bartlett
Assignee (at issue)
Cobra Golf Incorporated
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.