Surface cleaning agent
CA 2267331 A1 · Owner: Maurer, Karl-Heinz · Inventors: Bragulla, Siegfried; Maurer, Karl-Heinz; Potthoff, Andreas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The object of the invention is to improve agents for cleaning surfaces soiled with protein and/or fat, in particular with respect to the effect of these agents on deposits of milk and milk products. To that end at least one , protease and/or at least one lipase as enzyme(s) and at least one surfactant , component and at least one acid component are used.
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 September 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2019.
- 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.