Controlling slime-forming microorganisms
CA 2068894 A1 · Owner: Grebe, Hans-Joachim · Inventors: Bansemir, Klaus; Lehmann, Rudolf; Grebe, Hans-Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to the use of cysteine and/or cysteine derivatives for controlling slime-forming microorganisms, to a process for controlling slime-forming microorganisms and to an antimicrobial slime-control preparation containing cysteine and/or a cysteine derivative either alone or in combination with microbicides for use, in the process. In the context of the invention bioslimes are under-, stood to be the viscid secretions of microorganisms par-, ticularly bacteria, and the secretion-producing microorganisms themselves where they are part of the viscid mass.
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 8, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2012.
- 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.