Method for producing gas exchange package
CA 2471233 A1 · Owner: Asahi Kasei Life & Living Corporation · Inventors: Unno, Gensyou; Matsuki, Yutaka; Kawashima, Masahiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for producing a gas package which can accommodate containers of various sizes and shapes, a package container for hermetic seal and its package. The method for producing a gas exchange package the package , container for hermetic seal and its package are characterized in that the ridges of a container and a cover are superposed in a container including plastic and a package container using a cover the ridge part is sealed with a , stripe tape interior of the container is exchanged with gas through a hole of the package container which is then sealed hermetically.
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 16, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 16, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 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.