Sealing strip for adhering vapour-binding and vapour-sealing films, and method for the production thereof
CA 2551579 C · Owner: Wester, Dirk · Inventors: Wester, Dirk; Blum, Walter; Wiegmann, Volker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to self-adhesive flexible , sealing tapes, comprising at least one flexible self-adhesive , core or at least one flexible self-adhesive carrier , layer provided with an envelope or two-sided coating consisting of a second adhesive system.
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 16, 2004 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2024.
- 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.