Materials for travelled surfaces
CA 2580734 C · Owner: Bischoff, Dietmar · Inventors: Bischoff, Dietmar; Riehm, Michael; Salumbo, Amilcar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mixture of material for providing at least a portion of a travelled surface. The mixture includes an aggregate with a plurality of particles. The mixture also includes a hydrocolloidal agent adapted to swell upon exposure to water to form a resilient and flexible binder for substantially binding the , particles of the aggregate together. The aggregate and the hydrocolloidal agent have an initial pH. The mixture also includes an agent for elevating the initial pH to a predetermined pH, and a hydrophilic agent.
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 September 19, 2005 and granted January 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.