Self-levelling fluid mortar including calcium sulphate and lime
CA 2209108 C · Owner: Rhodia Chimie · Inventors: Sari, Mustapha; Frouin, Laurent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-levelling fluid mortar including calcium sulphate aggregates, lime, water and either a silica and an alumina-containing compound or a pozzolana, as well as a screed prepared from said fluid mortar are disclosed. The combined use of lime and either a silica and an alumina-containing compound or a pozzolana, for increasing the mechanical strength of a screed and reducing its water sensitivity is also disclosed.
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 December 29, 1995 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 29, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 29, 2017.
- 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.