Granted Patent
Utility
US 5,213,328 · App. 07/824,359
Reinforced metal golf club head
Inventors:
D. Clayton Long, R. Mark Allen
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Jan 23, 1992
Inventors
D. Clayton Long
R. Mark Allen
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.