Assembly to demonstrate and teach the game of bridge
CA 1294432 C · Owner: Weinstein, Leonard · Inventors: Weinstein, Leonard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The assembly is intended to sequentially reveal four hands of bridge starting from the dealer's hand to and including the right side opponent's hand. As revealed the, hands are represented on an image reproducing surface such as an overhead projector. To arrive at this there is provided a, transparent sheet displaying four pre-determined bridge hands and a series of overlying transparent sheets successively concealing one to four hands of bridge. This assembly visually illustrates in an inter-active learning situation and in an uninterrupted way, the appropriate bidding sequence and the play of each of the four hands of contract bridge that is fifty-two cards.
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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.