Golf putter with face plate insert
CA 2111272 C · Owner: Helmstetter, Richard C. · Inventors: Helmstetter, Richard C.; Schmidt, Glenn H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A golf putter for use with a putter shaft supporting a head, the head comprising a putter body having a heel, toe, and hole defining a bottom wall and a front wall, the body elongated between the heel and toe, and; the body having at least one recess projecting forwardly toward a plane defined by the front wall; and the body having a second recess sunk in the front wall, there being a non-metallic face plate having a periphery received in the second recess and bonded to the body.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 13, 1993 and granted April 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.