Method for filling compressed gas packages as well as a compressed gas package
CA 2037055 A1 · Owner: Hirsch, Anton · Inventors: Maier, Hans Erich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A C T :, The invention concerns a method for filling compressed gas packages aswell as the compressed gas packages themselves which consist of a, casing (1) which contains a pressure medium and of at least one flexible bag (2) located therein which is used for holding the substance to be inserted, whereby the inside of the flexible bag (2) is sealed by means of a valve (6) which is placed in the area of the orifice (4) of the casing (1). In order to further improve the above method as well as the accompanying compressed gas package to the extent that not only any pressure medium desired, in particular air can be used, but also, conventional commercial containers and the entire filling …
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 July 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2012.
- 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.