Drying roll for drying a material web
CA 2357643 A1 · Owner: Kugler, Georg · Inventors: Kugler, Georg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Roll and drying section of a machine for producing a material web and process for drying a material web. The roll includes a jacket having a plurality of throughput, openings, a device for supplying gas through the jacket and a second jacket , located, within the jacket being arranged to form a ring chamber with the jacket. The second, jacket is gas tight to seal the ring chamber in a gas-tight manner from an interior of, the second jacket.
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 September 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2023.
- 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.