Liquid cleaning composition containing an anionic polyacrylamide copolymer
CA 2544555 C · Owner: Bessemans, Frederic · Inventors: Mondin, Myriam; Bessemans, Frederic; Massaux, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement is described in all purpose liquid cleaning compositions which are especially effective in the removal of oily and greasy soil and contains an anionic detergent, and/or ethoxylated nonionic surfactants an anionic , polyacrylamide copolymer, olefin/maleic acid copolymer a hydrocarbon , ingredient, and water.
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 November 5, 2004 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 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.