Process for recovering the overspray of aqueous coating agents during spray application in spray booths
CA 2091297 A1 · Owner: Saatweber, Dietrich · Inventors: Siever, Friedrich L.; Saatweber, Dietrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for recovering the overspray of aqueous coating agents during spray application in spray booths A process is described for recovering the overspray of aqueous coating agents during spray application in spray booths in which aqueous circulating liquid is circulated for the purpose of collecting the overspray. The overspray material is continuously or discontinuously extracted from the circulating liquid in an electrocoagulation bath a, higher concentration of overspray being maintained in the electrocoagulation bath than in the circulating liquid of the spray booth as a result of ultrafiltration.
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 March 9, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 9, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2015.
- 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.