A foil for the wire section in a pipe making machine
CA 2111102 A1 · Owner: Sjodin, Sven-Erik · Inventors: Sjodin, Sven-Erik
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 dewatering rail a so-called foil (2), for the wire section in a paper making machine. More particularly said rail is of the kind being intended to be located transversely to the running direction (6) of the wire (4) with its upper surface in contact with the underside of the upper portion of the wire, said upper surface having a corrosion resistive e.g. ceramic, layer (12) on a bed (14) of stainless steel or similar. The bed is a thin plate (14), which is supported by a longitudinal rigid supporting structure (16), which forms part of the foil.
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 June 17, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 17, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 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.