Stable thickened liquid or gel cleaning composition containing bleach
CA 2126383 C · Owner: Heinzman, Stephen W. · Inventors: Wise, Rodney M.; Heinzman, Stephen W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Liquid or gel cleaning compositions displaying enhanced physical stability in the presence of bleach are provided comprising a, chlorine bleach ingredient cross-linked polycarboxylate polymer, a benzene or naphthalene sulfonate rheology stabilizing agent water, and a buffering agent to maintain the pH of the composition above about 10. Preferred automatic dishwashing detergent compositions containing builder and optional surfactant and metalate and, displaying shear thinning behavior are also disclosed.
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 21, 1994 and granted January 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2016.
- 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.