Laundry detergent and cleaning product tablets with improved dissociation properties
CA 2308663 A1 · Owner: Jebens, Heinke · Inventors: Lietzmann, Andreas; Feist, Michael; Schambil, Fred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tablet of compacted particular laundry detergent or cleaning product comprising at least one surfactant, at least one builder and if desired additional laundry detergent or cleaning product constituents and further, comprising from 2 to 20% by weight of at least one fatty alcohol sulfate based on the tablet weight and less than 1 % by weight of nonionic surfactants based on the tablet weight and having a melting point below 60°C.
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 June 8, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2022.
- 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.