Multi-coloured, patterned flooring and process of manufacture thereof
CA 2103990 C · Owner: Rischer, Dieter · Inventors: Heckel, Klaus; Rischer, Dieter; Graab, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-coloured, patterned flooring consists of a web of a first colour and a differently coloured granulate which is embedded into the web in an essentially even distribution at least at the surface of the web. The web and the granulate are made of cross linkable elastomers. The granulate includes at least two fractions of particles which have colours different from one another and from the web. The amounts and colours of the particles in the fractions are selected such that the mixed colour achievable upon homogeneous mixing of all components of the flooring essentially corresponds to the first colour. This permits the complete recycling of edge clippings and production left-overs for …
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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 August 12, 1993 and granted February 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2015.
- 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.