Expired Canadian patentCanada
Fibrous structures comprising a solid additive
CA 2590551 C · Owner: Prodoehl, Michael Scott · Inventors: Prodoehl, Michael Scott; Vinson, Kenneth Douglas
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fibrous structures comprising an additive more particularly finished fibrous , structures comprising a solid additive and/or sanitary tissue products , comprising such finished fibrous structures are provided.
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 2, 2005 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 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.
FiledDecember 2, 2005
GrantedSeptember 17, 2013
Term endedDecember 2, 2025
Patent numberCA 2590551 C
Classification (IPC)D21H21/22 +2 more
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.