Granted Patent
Utility
US 5,725,439 · App. 08/588,702
Golf club alignment device
Inventors:
Keith D. Halsey, Witold Siekaj
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Jan 19, 1996
Inventors
Keith D. Halsey
Witold Siekaj
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.