Multi-player type video game playing system
CA 2012049 C · Owner: Ikezawa, Mamoru · Inventors: Tashiro, Koichi; Ikezawa, Mamoru; Matsuura, Kosei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-player type video game playing system permits a plurality of players to play and enjoy a game within the common game space. The video game has a cylinder-shaped screen, a plurality of projectors arranged and allocated to project a game scene continuously extending around the entire circumference of the cylindrical screen a plurality, of players' operating sections arranges radially toward the screen, and an image processor for computing a game scene to be projected onto the screen in accordance with input signals from the players' operating sections and a predetermined game program. The image signals representative of the computed game scene are supplied to the projectors to form …
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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 March 13, 1990 and granted February 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2012.
- 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.