Apparatus and method for packaging and evacuating compressed mineral wool products
CA 2556321 C · Owner: Sorensen, Claus Egholm · Inventors: Sorensen, Claus Egholm; Hansen, Lars Elmekilde
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a package (5) comprising a mineral wool product (1) substantially air-tightly enclosed by a foil (25) characterised by bringing , about a dimensional reduction of said mineral wool product (1) by mechanically compressing said mineral wool product (1) in a first direction using mechanical compressing means (30) and evacuating said dimensionally reduced mineral wool product (1) enclosed by said foil (25).
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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 February 21, 2005 and granted January 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.