Dishwashing compositions comprising a phospholipase and an amylase
CA 2294839 A1 · Owner: Wolff, Ann Margaret · Inventors: Wolff, Ann Margaret; Speed, Lynda Anne; Barnabas, Mary Vijayarani
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to dishwashing compositions comprising a phospholipase and amylase for effective stain removal especially greasy/oily, starchy and highly coloured stains and soils. The dishwashing compositions of the present invention also provide the prevention of the staining/discolouration of the dishware and plastic components of the dishwasher by highly coloured components and the avoidance of the formation of lime soap deposits on the dishware.
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 July 2, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 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.