Compressable cheese center for dyeing purposes
CA 2005908 A1 · Owner: Emil Adolff Plastic Gmbh · Inventors: Windhosel, Ralf; Wendler, Michael H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
new), A b s t r a c t, This invention relates to a compressible cheese centre for dyeing purposes, comprising two end rings and a plurality of intermediate stiffening rings (12 14 and 16), connected together by springy webs (18). Belonging to the state of the art is a cheese centre (US 3 753 534) in which the webs are bent at rightangles and joined at rightangles to the rings and all the webs and stiffening rings form a cylindrical envelope on their external surface. There has also been disclosed (DE 75 16 449, Figs.5 and 6) a cheese centre having spacer lugs cooperating pairwise situated between the rings which are connected together by S-shaped webs whose middle sections can be clamped …
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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, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2011.
- 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.