Shooting scope used in shooting game system
CA 2084368 A1 · Owner: Shirai, Ichiro · Inventors: Shirai, Ichiro; Sugino, Kenichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordNo Claude kit for weapons
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Abstract From the Canadian patent
Engaging claws (15) and (16) are provided in the upper right front part in the longitudinal direction of a barrel (8), and engaging claws (18) and (19) are provided in the upper left part thereof. A gunsight (10) is held in the barrel (8) by the engaging claws (15) and (16) or by the engaging claws (18) and (19). Consequently the position, where the gunsight (10) is mounted can be changed to a position where a player can easily use the gunsight (10). In addition each of the engaging claws releases its engaged state by its elastic force to detach the gunsight (10) from the barrel (8) when a strong shock is given to the gunsight (10). Consequently, it is possible to prevent the gunsight (10) …
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 December 2, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2014.
- 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.