Golf ball having a dimple combination pattern
CA 2430958 A1 · Owner: Spalding Sports Worldwide, Inc. · Inventors: Kennedy, Thomas J. Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combination dimple pattern on the surface of a golf ball (2) is characterized by both circular and compound dimples (10). The compound dimples (10) include a first circular dimple portion and a second dimple portion (16) arranged in a bottom surface (14) of the first circular portion with the , second dimple portion (16) having a diameter less than the diameter of the first circular portion. The combination of compound and circular dimples (4 10) on the surface of the ball (2) improves the aerodynamic efficiency of the ball (2) and increases the distance the ball (2) will travel.
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 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2023.
- 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.