Paste-like washing and cleaning agent
CA 2264838 A1 · Owner: Merz, Thomas · Inventors: Merz, Thomas; Shamayeli, Khalil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A paste-like washing and cleaning agent contains non-ionic surfactants organic and/or inorganic builders, alkalising agents and if required bleaching agents, enzymes, greying-inhibiting polymers and/or other usual ingredients and is characterised in that it is free from synthetic anionic surfactants of the alkyl benzene sulphonate type and in that it contains 5 to 30 wt % of an ethoxylated alcohol of general formula (I): R1-(OC2H4)m-OH in which R1 stands , for an alkyl or alkenyl radical with 12 to 14 C atoms and can take a mean ethoxylation value m from 1 to 8; 1 to 20 wt % of an ethoxylated alcohol of general formula (II): R2-(OC2H4)n-OH, in which R2 stands for an alkyl or alkenyl …
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 August 28, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 28, 2019.
- 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.