Apparatus for cooling a traveling strip
CA 2037331 C · Owner: Perneczky, George · Inventors: Perneczky, George
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 apparatus for cooling a traveling strip of heated material. The apparatus includes a cooling header comprising an external pipe having disposed therein a plurality of internal pipes having discharge holes. The external pipe has an exit which communicates with the discharge holes, and further includes a first chamber which communicates with a source of air and a second chamber which communicates with the first chamber and the internal pipes.
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 February 28, 1991 and granted February 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2013.
- 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.