Heat/sound insulation product based on mineral wool
CA 2415576 C · Owner: Calero, Claire · Inventors: Coventry-Saylor, Kathleen H.; Calero, Claire; Beaufils, Sebastien
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a heat and/or sound insulation product based on mineral wool such as glass wool or rock wool. Said product has at least part of its outer surface uncoated. It is treated at the surface over at least a portion of said outer surface with a composition with softening properties comprising at least a surfactant. The invention also concerns the device and the method for making such a product.
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 12, 2001 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2023.
- 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.