Granted Patent
Utility
US 6,776,728 · App. 10/611,996
Weight member for a golf club head
Inventors:
Chan-Tung Chen, Yan-Zheng Su
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Jul 3, 2003
Inventors
Chan-Tung Chen
Yan-Zheng Su
Assignee (at issue)
Nelson Precision Casting Co., Ltd.
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.