Granular multi-surface cleaner with bleach
CA 2085349 A1 · Owner: Herrmann, Kenneth W. · Inventors: Barger, Bruce; Young, Raymond D.; Herrmann, Kenneth W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A granular multi-surface cleaner contains detergent granules admixed with dry bleach. The multi-surface cleaner has a particle size between 50 microns and 2000 microns in diameter a bulk density, between 250 grams/liter and 600 grams/liter and a pH above 7. The detergent granules contain: (a) 11 % to 35 % surfactants by weight of the multi-surface cleaner, and not more than 2 % nonionic surfactants; (b) 10 % to 80 % combined builder plus alkalinity source by weight of the multi-surface cleaner and not more than 5, % alkalinity source; and (c) the remaining part fillers minor, ingredients, moisture, and mixtures thereof. The bleach is a dry bleach selected from the group consisting of …
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 3, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2013.
- 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.