US3684285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chess game apparatus
Assignee: Individual
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Filing: 1970-06-19
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Granted: 1972-08-15
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Expires: 1990-06-19
Abstract
Abstract A chess game apparatus is disclosed having a game board comprised of four vertically spaced-apart layer members. Each layer member has a square-shaped checkboard pattern formed by 16 squares on its upper surface and is preferably supported in a horizontal plane. The game is for play by two opponents, each using a chess set of eight pawns, two rooks, two knights, two bishops, one queen and one king. Four of the pawns of each chess set are distinctively marked so as to permit identification distinct from other pawns.
Inventors
- 👤 John Robert Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:54
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/00214; A63F3/02; A63F2003/00217
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
171 words
In a chess game apparatus, a game board comprising: four layer members, each layer defining an upper horizontal playing surface divided into 16 playing squares, and each layer arranged in a corresponding checkerboard pattern, supporting means for supporting said layer members in four separate planes and arranged to permit advancement of chess pieces on and between the playing surfaces, alternate ones of the playing squares defined on each of said layer members being distinguishable from the others to form a checkerboard pattern and said layer members being supported by said support means with the alternate ones of the playing squares formed thereon in vertical alignment with one another, and one set of chess pieces for each opponent, each of said sets of chess pieces having eight pawns, two rooks, two bishops, two knights, one queen and one king, and four pawns of each of said sets of chess pieces being distinctly marked so as to be identifiable from the other pawns of their respective one of said sets of chess pieces.
Claim 2
Dependent Claim
171 words
In a chess game apparatus, a game board comprising: four layer members, each layer defining an upper horizontal playing surface divided into 16 playing squares, and each layer arranged in a corresponding checkerboard pattern, supporting means for supporting said layer members in four separate planes and arranged to permit advancement of chess pieces on and between the playing surfaces, alternate ones of the playing squares defined on each of said layer members being distinguishable from the others to form a checkerboard pattern and said layer members being supported by said support means with the alternate ones of the playing squares formed thereon in vertical alignment with one another, and one set of chess pieces for each opponent, each of said sets of chess pieces having eight pawns, two rooks, two bishops, two knights, one queen and one king, and four pawns of each of said sets of chess pieces being distinctly marked so as to be identifiable from the other pawns of their respective one of said sets of chess pieces.
Claim 3
Dependent Claim
21 words
The invention recited in claim 1, wherein said sUpporting means are cylindrical members threadedly connected to each of said layer members.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |