Golf putter head
CA 2212651 A1 · Owner: Perotta, Frank · Inventors: Perotta, Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A golf putter has a head made from a stone material. Such material is chosen from marble, granite and other similar material. Putter heads of the invention can be easily adjusted in weight and shape to the requirements of the golfer. Further the head can easily be provided with, inserts to increase the head weight or to provide a variety of ball contacting surfaces.
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 August 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2019.
- 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.