Lotting device
CA 1321221 C · Owner: Strutt, James W. · Inventors: Strutt, James W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are dice which can be used to select numbers to be played in lotteries having a relatively large set of numbers from which to choose, e.g. "LOTTO 6/49". Several embodiments are disclosed but all comprise single die having pairs of opposed parallel polygonal facets of at least two different types the, facets each having vertices which lie on the surface of an imaginary sphere. One embodiment has 48 facets comprising two sets of 24 triangles each, each set being the mirror image of the other. Another embodiment comprises 24 pentagons and 18 squares for a total of 42. Still another embodiment has five different types of triangles, there being 56 triangular facets in all.
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
- Granted August 10, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 10, 2010.
- 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.