Calender for webs of paper or a similar material
CA 2277428 A1 · Owner: Stock, Gerhard · Inventors: Hinz, Joachim; Helmus, Mathias; Kayser, Franz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a calender for treating a material web. In an exemplary, embodiment, first and second roll stacks have first and second deflection adjustment rolls on an, end thereof, respectively. Each of the first and second deflection adjustment rolls has a sleeve lift, and a sleeve supported by a deflection adjustment device on a fixed bracket. The first and second, deflection adjustment rolls are adjacent to each other to define an additional nip therebetween that, can be at least partially closed by the sleeve lift. An effective direction of the deflection, adjustment device of the first deflection adjustment roll alternatively points toward the first roll, …
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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 15, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2021.
- 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.