Patent US4570934A successfully refreshed from Google Patents.
US4570934A
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US
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Poker machines
Assignee: Ainsworth Nominees Pty Ltd
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Filing: 1984-11-21
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Granted: 1986-02-18
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Expires: 2004-11-21
Abstract
Abstract A type of poker, slot or fruit machine of conventional construction but having on one or more of the drums or other symbol display elements a designated symbol. Whenever, the designated symbol appears on the pay line at the end of a play cycle the fact is recorded and one of a number of additional lights on the front of the machine is lighted. After a predetermined number of play cycles, preferably six or less, a prize is delivered depending on the number of times that the designated symbol has appeared on the pay line.
Inventors
- 👤 Richard E. Smyth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:26
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/32; G07F17/3244; G07F17/3258
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
169 words
A poker, slot or fruit machine having a plurality of symbol display elements each having a plurality of symbols, said machine being normally operative in a play cycle to display one symbol from each display element sequentially in a viewing area, said display elements being arranged to display in said viewing area at the end of a play cycle one symbol from each said display element to form a combination of said symbols which can have a predetermined score value, characterised in that at least one designated symbol is provided on at least one display element, there being means to detect the appearance of said designated symbol in the viewing area at the end of a play cycle and to give a visible indication of said designated symbol having been displayed, means to record and indicate the number of occurences of the display of said designated symbol after a predetermined number of play cycles and means to cancel the said visible indication before the next play cycle is commenced.
Claim 2
Dependent Claim
169 words
A poker, slot or fruit machine having a plurality of symbol display elements each having a plurality of symbols, said machine being normally operative in a play cycle to display one symbol from each display element sequentially in a viewing area, said display elements being arranged to display in said viewing area at the end of a play cycle one symbol from each said display element to form a combination of said symbols which can have a predetermined score value, characterised in that at least one designated symbol is provided on at least one display element, there being means to detect the appearance of said designated symbol in the viewing area at the end of a play cycle and to give a visible indication of said designated symbol having been displayed, means to record and indicate the number of occurences of the display of said designated symbol after a predetermined number of play cycles and means to cancel the said visible indication before the next play cycle is commenced.
Claim 3
Dependent Claim
26 words
A poker, slot or fruit machine as claimed in claim 1 wherein the predetermined number of play cycles is more than one and less than six.
Claim 4
Dependent Claim
27 words
A poker, slot or fruit machine as claimed in claim 1 or claim 2 wherein the designated symbol is a symbol additional to said plurality of symbols.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |