Granted Patent
Utility
US 6,458,038 · App. 09/945,410
Golf putting indication device
Inventor:
Teh-Cheng Lin
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Sep 4, 2001
Inventor
Teh-Cheng Lin
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.