Paper machine clothing
CA 2084636 A1 · Owner: Kenny, Maryann Cully · Inventors: Barlow, Sandra Krohto; Konopasek, Ludmilla; Kenny, Maryann Cully
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 an article of paper machine clothing for use in high temperature applications, which article comprises:a) a paper contacting surface layer adapted in use to contact a forming paper sheet;, b) a base layer structure; and c) at least one intermediate layer disposed between said surface layer and said base layer structure characterised in that said surface layer comprises a fibrous or continuous layer constituting a thermal barrier and providing properties of sheet release.
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 December 4, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2014.
- 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.