Device for cooling, drying and granulating strands
CA 2045137 C · Owner: Nogossek, Alfred · Inventors: Keilert, Jurgen; Nogossek, Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for cooling, drying, and granulating molten strands issuing from nozzles with an outlet channel the upper end of, which is located below the nozzles a device, generating a, current of cooling liquid over the outlet channel a, granulator arranged downstream of the outlet channel and with a dehydrating section that is arranged upstream of the granulator and in which the strands rest on a support provided with orifices for the unrestricted passage of the cooling liquid. The outlet channel in the region following the dehydrating section is provided with inlet nozzles that inject a current of fluid and that are so close together and arranged over such a length in its bottom that the …
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 January 5, 1990 and granted October 13, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 5, 2012.
- 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.