Non-aqueous liquid detergent compositions
CA 2258545 A1 · Owner: Smerznak, Mark Allen · Inventors: Meyer, Axel; Garland, Angela Lynn; Smerznak, Mark Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are non-aqueous, particulate-containing liquid laundry detergent compositions which are in the form of a suspension of particulate material preferably including peroxygen bleaching agent and an organic detergent builder, dispersed in a liquid phase structured with a surfactant and elasticized with finely devided particulate material such as silica or titanium dioxide. Such compositions provide especially desirable cleaning and bleaching of fabrics laundered therewith and also exhibit especially desirable pourability and chemical and phase stability.
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 26, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 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.