Slot machine
CA 2113705 C · Owner: Igt · Inventors: Inoue, Haruo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slot machine having observation windows formed in a 3 x 3 matrix on a front panel. At the back of each observation window, a reel is mounted which is rotated by a pulse motor. When a reel stops one symbol, appears at the central area of each observation window. Eight winning lines are provided including three vertical lines, three horizontal lines, and two diagonal lines. These winning lines are made valid in accordance with the number of inserted coins. The reels are stopped in a predetermined order. If a combination of symbols on a valid winning line is a winning symbol combination, coins corresponding in number to the rank of the winning symbol combination are paid out.
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 January 18, 1994 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 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.