Slab lining
CA 2032948 C · Owner: Rundmund, Theo · Inventors: Rundmund, Theo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a slab lining in particular, for a water-tight and/or acid-or alkali-resistant floor or wall covering, consisting of slabs with a polygonal contour. Each slab has a flat upper face and a flat or textured lower face set in a bed ef adhesive material: Flanks extend from the lower face to the upper face with adhesive material and/or from above with a special grouting material. The flanks are provided with a texture which increases the surface area of the top face and allows the adhesive material or the grouting material to pass through the joints. The texture consists of a plurality of adjacent depressions or projections whose longitudinal axes extend parallel to each …
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 April 24, 1990 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2012.
- 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.