Monitor for growth and deposit
CA 2113339 A1 · Owner: Kiwa N.V. · Inventors: Van Der Kooij, Dirk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for monitoring the formation of deposits or growth such as biofilm on surfaces which are exposed to a liquid essentially containing water, wherein the liquid particles are carried only once without being circulated through a tube section through and, along a series of sample tube pieces removably placed within the tube section, the sample tube pieces being successively removed each time after a period of flow without being replaced and being treated to determine the biofilm formation thereon. The tube section is arranged essentially vertically the flow through it being a, downward one and each time the uppermost sample tube piece is removed.
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 July 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2014.
- 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.