Heat /sound insulation product based on mineral wool and method
CA 2415575 C · Owner: Beaufils, Sebastien · Inventors: Beaufils, Sebastien; Calero, Claire
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for making a heat and/or sound insulation product based on mineral wool by internal centrifuge with a production line comprising n fibre drawing members in series which consists in adjusting differently at least one fibre drawing parameter of two successive fibre drawing members on the production line. The invention also concerns the resulting products.
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 July 10, 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.