Granted Patent
Utility
US 4,325,550 · App. 06/174,625
Putter with shaft axis focussed at blade keel
Inventors:
Stanley C. Thompson, Glenn H. Schmidt
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Aug 1, 1980
Inventors
Stanley C. Thompson
Glenn H. Schmidt
Assignee (at issue)
Stan Thompson Golf Club 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.