Plastic gut perforated by a laser
CA 2352182 A1 · Owner: Wolff Walsrode Ag · Inventors: Pophusen, Dirk; Krallmann, Anton
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 a biaxially stretched polyamide-based film , tube comprising at least one layer and being able to shrink perforated by means of laser light, especially a plastic gut which can be used as an artificial sausage skin.
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 November 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.