Gas cylinder base
CA 2435227 A1 · Owner: Berry, Marianne E. · Inventors: Berry, Steven J.; Berry, Marianne E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention comprises a ring-shaped support base comprising a first outer skirt, portion supporting a second inner ring portion extending upwardly from the first outer, skirt portion. The second inner ring portion is adapted to slidably engage a base ring, attached to the bottom of a gas cylinder and is provided with a chamfered lip , adapted to supportably communicate with the bottom of the cylinder. The support base can be, fixedly attached to the base ring through threaded fasteners extending through the second, inner ring and the cylinder base ring or a plurality of detents.
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 11, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2025.
- 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.