Oval cross-section tube, method for the production and device for the use thereof
CA 2593148 C · Owner: Aisapack Holding S.A. · Inventors: Keller, Gerhard; Thomasset, Jacques; Roy, Hugues-Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an elastic substantially tubular package (1) for a semi-liquid or pasty extractable by a finger pressure product comprising a skirt (2) a head (3) and optionally a cap (4), wherein said skirt (2) is formed from a wound foil and is provided with a longitudinal weld seam (6) formed by the overlapping of the edges thereof and the head (3) is fixed to the circumference of the skirt end (7) and forms an oval cross-section at the level of the skirt (2) fixing area. The inventive package (1) is characterised in that the end of the longitudinal weld seam (6) contacting the head is located in or near an area where the radius of curvature of the oval cross-section is minimal.
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 December 27, 2005 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.