Detergent dispenser
CA 2471738 A1 · Owner: Ecolab Inc. · Inventors: Schuman, Allan L.; Sowle, Eddie D.; Rolando, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
During the rinse cycle of a re-circulating dishwashing machine (132) water is , simultaneously diverted into a dispenser (100) as water is delivered to the rinse arms (133) of the dishwashing machine (132). The cavity (118) of the dispenser (100) contains a solid detergent block (125) and is flooded with water during the rinse cycle. The water contacts the detergent (125) during the rinse cycle to create a use solution and the use solution exits the , dispenser (100) and flows into a wash water storage tank (135) of the dishwashing machine (132). During the wash cycle of the dishwashing machine (132), the wash water containing the use solution from the dispenser (100) is pumped into …
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 March 5, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 5, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2025.
- 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.