Patent 5374060 Issued on December 20, 1994. Estimated Expiration Date: June 24, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
A method of wagering at a racetrack where the racing entities are typically horses or dogs in whose practice cards are made available to persons attending the races for entering, prior to the beginning of the schedule of races, or, for latecomers, the beginning of a predetermined race herein called the nth race, the identification of the racing entities which each person selects to be "in the money." Cards are available for WIN alone, and/or for WIN and PLACE and/or for WIN, PLACE and SHOW. The payout is on a correct selection of all entities, on all entities less one, on all entities less two, etc., up to for all entities less a predetermined number. The payout is a predetermined prize assigned prior to the start of the races and is commensurate with the probability of the correct selection as the case may be. At racetracks where the entities in each race are numbered sequentially, there are also two types of payoffs. There is a payoff out of the purse wagered to those wagerers whose total selection as equal to actual total which occurred. There is also a payoff independently of the purse wagered to wagerers whose total number of selection is equal to the total of the numbers of the winning entities with the additional condition that the wagerer must have selected correctly for a predetermined number of the races.
"5-6 Pool, Pick-Six Bonanza", Scarnes Complete Guide to Gambling by John Scarne, Simon and Schuster, 1961, pp. 89-9