Co2 cartridge pressurization device
CA 2256776 A1 · Owner: Crosman Corporation · Inventors: Mussack, Kevin R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressurization and regulating device uses a CO2 cartridge for pressurizing a fluid container such as the fuel tank of a gasoline lantern or stove a garden or lawn sprayer, and the like. The device includes an elongated body having an open end for receiving the cartridge and a cap for forcing the cartridge toward the body. The other end of the body is provided with a fluid outlet opening. An outlet cap is mounted on the second end of the body. A piston is reciprocably mounted in the outlet opening of the body, and a seal on the piston is engageable with a valve seat in the outlet opening for closing the outlet opening. A spring in the outlet cap biases the piston away from the valve seat. …
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 January 11, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2021.
- 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.