Method of mechanical dishwashing and compositions
CA 1048909 A · Owner: Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) · Inventors: Altenschopfer, Theodor; Schwuger, Milan J.; Rostek, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the mechanical washing of dishes wherein, the soiled dishes are treated with an aqueous alkaline liquor having a pH of from 8 to 13 which contains at least one compound inhibiting alkaline earth metal ion precipitation,rinsing and recovering cleaned dishes comprising using finely-dispersed water-insoluble silicate compounds having a calcium-binding power of at least 50 mg CaO/gm of anhydrous substance and having the formula, combined water not shown, of (M2/nO)x . Me2O3 . (SiO2)y, where M is a cation of the valence n exchangeable with calcium, x is a number of from 0.7 to 1.5 Me is a member selected from, aluminum and boron and y is a number of from 0.8 to 6 as, said compound …
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
- Granted February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 1996.
- 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.