Electronic gaming apparatus
CA 2178097 C · Owner: Mathis, Richard M. · Inventors: Michaelson, Richard E.; Mathis, Richard M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is a gaming apparatus including a series of rotatable reels (23 25, 27), having indicia on the peripheries for displaying game results. The gaming apparatus includes a number of computers (52, 54, 56) for controlling the various functions of the game. One of the computers (52) includes a random number generator which generates a first random number that is compared to the hit frequency defined as the probability of a game being a winning game to determine whether the game played is a winner or a loser, and if the game is a losing game, the reels are stopped to display a losing combination. If the game is a winning game, a second random number is generated which is compared to …
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 December 1, 1994 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2016.
- 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.