Tokenless slot machine system

Patent 4880237 Issued on November 14, 1989. Estimated Expiration Date:

December 29, 2007. 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.

Abstract Claims Description Full Text

Patent References

Electronic access control system for coin-operated games and like selectively accessible devices
Patent #: 4575622
Issued on: 03/11/1986
Inventor: Pellegrini

Poker machine communication system
Patent #: 4636951
Issued on: 01/13/1987
Inventor: Harlick

Automatic lottery system
Patent #: 4689742
Issued on: 08/25/1987
Inventor: Troy , et al.

Video game machine for business use Patent #: 4752068
Issued on: 06/21/1988
Inventor: Endo

Inventor

Kishishita, Ryutaro

Application

No. 139313 filed on 12/29/1987

US Classes:

463/25, Credit/debit monitoring or manipulation (e.g., game entry, betting, prize level, etc.)273/143R, Edge indication283/903, LOTTERY TICKET463/20, Lot-to-lot combination (e.g., slot machine, etc.)463/26, Pool amount (e.g., jackpot, etc.)463/29, Access or authorization (e.g., game selection, security, etc.)463/42Network type (e.g., computer network, etc.)

Examiners

Primary: Picard, Leo P.
Assistant: Harrison, Jessica J.

Attorney, Agent or Firm

Rogers, III; L. Lawton, Killeen; Joseph M.

International Classes

A63F 009/22
A63B 067/00
G06F 015/28

Foreign Application Priority Data

1987-11-30 JP

Abstract

A slot machine requiring no game media at all and comprising a game data processing unit which is provided with an input unit for specific data, a storage unit, an arithmetic processing unit, a printer, and a display; and a slot machine body which is provided with a pattern display mechanism, a starting lever, stopping buttons, a win decision unit, and a display for the input data and the results of arithmetic processing. The game data processing unit printer is operative for printing the input data and an incorrect version of the input data on opposing sides of a card and issuing the card to a player for enhanced security. Data that are the same as the specific data input in the data processing unit are input in an input unit for the specific data on the slot machine side so that a game can be started, and the game is allowed to progress or is stopped by operating the specific data input unit on the machine side.