Ejection pistol for double-walled cartridges
CA 2033627 A1 · Owner: Maderag Ag · Inventors: Mader, August
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an ejection pistol for doublewalled cartridges comprising a hand-operated pistol grip a, trough-shaped half shell, a piston rod mounted displaceably therein, a substantially circular ejection plate disposed at the front end of the piston rod, and a cylindrical tube open on one side containing two cylindrical rams disposed coaxially with each other and with the longitudinal axis of the tube.
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 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2013.
- 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.