Granted Patent
Utility
US 4,957,294 · App. 07/205,682
Golf club head
Inventor:
D. Clayton Long
Patented Case
View Patent ↗
Granted: Sep 18, 1990
Filed: May 13, 1988
Inventor
D. Clayton Long
Assignee (at issue)
MacGregor 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.