Connection to a gas cylinder
CA 2123134 A1 · Owner: Braatz, Robert Edwin · Inventors: Sansom, Gordon George; Braatz, Robert Edwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A connection between the yoke (1) of anaesthetic delivery apparatus and a gas cylinder is made using an adaptor block (7) which has formations corresponding to formations on a gas cylinder containing a particular gas to allow the block and the cylinder to be connected to one another, and machine readable indicia (18) by which the block (7) can be identified by the delivery apparatus when connected to a cylinder of gas. The adaptor block (7) may include a plurality of sets of formations and indicia (11) to allow, connections to a number of cylinders containing different gases, to be made.
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 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 11, 2014.
- 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.