Method for producing high-temperature resistant technical paper and paper produced according to said method
CA 2279238 A1 · Owner: Culimeta - Alfons Cuylits - Gesellschaft Fur Textilglas Technologie M.B.H. & Co. Kg · Inventors: Becker, Uwe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for producing high-temperature resistant technical paper, wherein fibers are mixed with wet paper pulp and technical paper is subsequently produced by dehydrating said pulp thereby causing the , paper material to be compressed. According to said method cut fibers and , previously thermally pre-shrunk fibers are added to the wet pulp so that the finished technical paper undergoes low thermal shrinkage of less than 1 % when used at high temperatures.
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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 February 28, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2020.
- 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.