Cleaning agent
CA 2436787 A1 · Owner: Bbt Bergedorfer Biotechnik Gmbh · Inventors: Becker, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a detergent, especially for cleaning outlet pipes for waste water containing fat and/or protein from households of communal , origin or from industrial concerns. The detergent contains urea a urea , derivative, a salt of urea and/or a salt of a urea derivative in proportions of approximately 50 to 90 wt. % urea, a urea derivative a salt of urea and/or , a salt of a urea derivative in relation to the dry substance; an agent with an alkaline action, protease and micro-organisms which break down fat.
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 November 23, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 23, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2023.
- 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.