Device for adjusting/closing the valve of a gas bottle
CA 2267216 A1 · Owner: Hattunen, Mauri · Inventors: Hattunen, Mauri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device for adjusting/closing the shut-off valve (2) of a gas bottle or a similar container. The device comprises a frame (7) a , turning means (5), a coupling element (6) fitted to the regulating element (3) of the shut-off valve (2) of the gas bottle and power transmission elements , (8, 9 10, 11) for the transmission of the motion of the turning means (5) to the regulating element (3). The turning means makes it easier to open/close the gas bottle. The turning means can serve as a valve state indicator.
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 September 23, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2019.
- 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.