Method of making bingo cards
CA 1215431 A · Owner: Kondziolka, Stanley F. · Inventors: Klein, Henry; Kondziolka, Stanley F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A computer generates alphanumeric configurations of bingo cards seriatim by using a random number program, then compares the new bingo card sequentially with all cards previously stored in a memory. The computer rejects the new card if it is the same as a stored card and generates a new card. If the card is different from all previously stored cards then it is stored in memory. Each time a card is stored in memory, the computer calculates the total number of cards. When the total has advanced by a given increment, the computer causes a laser printer to print the incremental cards on fan-folded paper. After each card is stored in memory, the computer generates a new card.
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 December 16, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 16, 2003.
- 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.