Elastomeric playground surface and method of installing same
CA 2553302 C · Owner: Huber, Rolf · Inventors: Huber, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A playground play surface that is safe and suitable for use by children consists of a base layer a fluid permeable base covering layer, a bag layer a ground particle layer, and a top cover layer. The bag layer consists of a plurality of bags each filled with loose or shredded rubber and which are aligned side by side forming a single layer of rows and columns. The ground particle layer consists of ground or shredded rubber or tire particles which are secured into a cohesive layer by a binder. A retaining border defines the playground play surface and contains the layers.
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 July 21, 2006 and granted November 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2026.
- 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.