Squeeze pack
CA 2049447 A1 · Owner: Kautex Werke Reinold Hagen Ag. · Inventors: Enge, Herbert; Wagner, Axel; Boll, Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A squeeze pack comprises a substantially dimensionally stable but elastically deformable external container and an easily deformable internal container arranged inside it. A closure means closes off both the intermediate space between the internal and external containers and also the interior of the internal container relative to the external atmosphere and further closes off the interior of the internal container relative to the intermediate space. The closure means has a delivery valve for discharge of filling material from the internal container and a venting valve for the intermediate space. The internal container is carried by a sleeve-like holding means which is arranged between 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 August 20, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2013.
- 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.