Granted Patent
Utility
US 5,056,705 · App. 07/555,181
Method of manufacturing golf club head
Inventors:
Saburo Wakita, Junji Hoshi, Shinich Miyamoto, Hideo Kawabata
Patented Case
View Patent ↗
Granted: Oct 15, 1991
Filed: Jul 18, 1990
Inventors
Saburo Wakita
Junji Hoshi
Shinich Miyamoto
Hideo Kawabata
Assignee (at issue)
Mitsubishi Metal Corporation
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.