Gauges for testing sand in or for golf course sand bunkers
CA 2312553 A1 · Owner: Wood, Donald C. · Inventors: Harman, Todd D.; Wood, Donald C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sand penetrability gauge for golf course bunker sand having a probe shaft for penetrating into bulk sand a, weight or spring for reproducibly applying force to advance the probe shaft into bulk sand, the probe shaft being movably connected to the weight or spring and measuring, indicia associated with the probe shaft for measuring displacement of the probe shaft, With a cross-sectional area of the probe shaft sad the force of the weight or spring selected so that the measuring indicia will provide a displacement measurement when the probe is driven into golf course sand bunker sand.
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 June 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 2022.
- 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.