Chain conveyor
CA 2090041 C · Owner: Rautio, Kauko · Inventors: Rautio, Kauko
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 chain conveyor for example for, conveying sawn wood after a sawing machine the chain conveyor, being made up of two adjacent conveyor chains on top of which the conveyor flights supporting sawn wood are located. The conveyor flight is articulated in such a manner that the width of the entire chain conveyor can be regulated by adjusting the distance between the conveyor chains.
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 18, 1992 and granted October 14, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 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.