Skiing run with means for preserving snow
CA 2501518 A1 · Owner: Mollin, Henri · Inventors: Mollin, Henri; Crammer, Raimund
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ski run provided with a means for preserving snow on the skiing surface said , means comprising at least pipes suitable for the flow of a cooling agent for cooling the snow present on the skiing surface said pipes (1) being embedded , and located in a layer (5) enabling when the layer (5) has a temperature of at least 2~C, a water percolation through the layer (5). Below the layer (5) a draining system (6, 7) is placed for collecting and draining at least substantially all the water percolating through the layer (5) in which the pipes (1) are embedded.
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 October 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2025.
- 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.