Pneumatic gun and projectiles therefor
CA 2089269 A1 · Owner: Fowler, Jeffrey Bruce · Inventors: Fowler, Jeffrey Bruce
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A hand held pneumatic gun (50) has an airway (60 62) arranged to, be coupled to a source of compressed air the airway (60, 62), communicating with an air chamber (56) via a trigger valve assembly (64). The gun includes a detachable breech (96) that is supported in a sealed position against the air chamber (56) by a support ring (108) pivotally secured to the body (54) of the gun. An interlocking assembly (116) is arranged to interlock with the trigger valve assembly (64) if the breech (96) is not supported in its sealed position, so that actuation of the trigger valve assembly (64) is inhibited unless the breech (96) is sealed against the air chamber (56). The breech (96) incorporates a …
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 August 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 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.