Paper machine cover, in particular a dryer screen
CA 2083231 C · Owner: Huser, Martin · Inventors: Huser, Martin; Halterbeck, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A paper making machine drying web comprising a woven knitted or non-woven fabric having flattened threads. The threads consist of monofilaments or multifilaments which are plastically deformed by application of heat and pressure to produce a flattened crass section the mayor axis of which is in the plane of the web.
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 November 18, 1992 and granted November 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 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.