Coating device
CA 2019703 A1 · Owner: Kustermann, Martin · Inventors: Kustermann, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
On a coating device, at the mouth originating from the chamber for the coating substance, there is provided between, said mouth and the backing roll or web a cover body which on, its surface near the mouth forms an outlet channel that extends away from the space through which at the doctor blade flows the coating substance. This outlet channel has a throttle effect. Additionally the cover body forms relative to the doctor blade a second throttle channel which is located relatively close to the smoothing edge of the doctor blade. At the outlet of the second throttle channel, the cover body preferably extends into a point which is arranged relatively close to the backing roll or web. The …
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 June 22, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 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.