Multi-cartridge shooting gun device
CA 2092382 A1 · Owner: Kan, Chun-Chien · Inventors: Kan, Chun-Chien; Kan, Chun-Chien
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A multi-cartridge shooting gun device includes a magazine, wherwin the center of the magazine having an engaging hole rotatably mounted onto the supporting shaft of the gun housing. The magazine has a multiple magazine holes formedaround the engaging hole. The cartridges respectively inserted in each magazine hole and multiple springs respectively mounted between the cartridge and the magazine and compressed therebetween. With one of cartridges in the magazine hammered by the trigger and released by the spring, the cartridge can be shot against the target with the help of resilience given from the spring. -12-
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.
Why it's free to use
- Filed March 24, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 24, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2015.
- 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.