Process for regeneration of rubber from scrap
CA 2456498 A1 · Owner: The Fulford Group Inc. · Inventors: Martin, Daniel; Zaddi, El Hadi; Fulford, Roland
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 process for converting an elastomer from scrap to a regenerated elastomer which comprises the steps of: a) introducing the elastomer from scrap into a vessel equipped with agitating means the , elastomer from scrap being in a powder form; b) agitating and heating the elastomer from scrap, limiting the heating of the elastomer from scrap to a temperature below the temperature where the elastomer begins to degrade; c) introducing an oil into the vessel and admixing together the elastomer from scrap and the oil; and d) cooling down the so formed regenerated elastomer whereby the regenerated elastomer has properties similar to a corresponding virgin elastomer. …
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 August 8, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2024.
- 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.