US4190254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
"Double-chess" game board
Assignee: Individual
•
Filing: 1976-07-29
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Granted: 1980-02-26
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Expires: 1996-07-29
Abstract
Abstract A game board for the play of partnership chess by four participants. The playing area of the board is 8-sided, being bounded by four straight sides alternated with four curved sides formed by quarter circles. A symmetrical checkered pattern of 120 four-sided and 8 five-sided playing spaces is provided on which four standard sets of 16 chess pieces are to be placed. In the preferred embodiment of this invention, an octagonal space or gate is located at the center of the board, with dotted lines establishing pairs of optional routes to either the right or left for those chess pieces permitted to make diagonal moves toward the board center.
Inventors
- 👤 Winthrop M. Leeds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:04
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/00176
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A chess game board having an 8-sided peripheral configuration consisting of four straight sides alternated with four concave curved sides, the playing area on said game board comprising 128 playing spaces arranged in 16 curved lanes of 8 spaces each, a group of four lanes following approximately the contour of each of said four curved sides of said game board in advancing from one straight side of said game board to the adjacent straight side, and said game board having an octagonal play-directing area at the center of said board, said area changing the 8 central playing spaces into pentagonal shapes, with said octagonal play-directing area containing 8 dotted lines bridging alternate sides of said octagonal play-directing area so as to indicate optional routes taking either a 90 degree turn to the right or a 90 degree turn to the left for those chess pieces permitted to move along a diagonal route that could take them directly toward the center of said game board.
Claim 2
Dependent Claim
164 words
A chess game board having an 8-sided peripheral configuration consisting of four straight sides alternated with four concave curved sides, the playing area on said game board comprising 128 playing spaces arranged in 16 curved lanes of 8 spaces each, a group of four lanes following approximately the contour of each of said four curved sides of said game board in advancing from one straight side of said game board to the adjacent straight side, and said game board having an octagonal play-directing area at the center of said board, said area changing the 8 central playing spaces into pentagonal shapes, with said octagonal play-directing area containing 8 dotted lines bridging alternate sides of said octagonal play-directing area so as to indicate optional routes taking either a 90 degree turn to the right or a 90 degree turn to the left for those chess pieces permitted to move along a diagonal route that could take them directly toward the center of said game board.
References Cited (Backward Citations)
US511306A
Cited
FR335792A
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US872923A
Cited
US3359003A
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US3652091A
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US3866918A
Cited
US3840237A
Cited
US3963242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-25 | 1983-08-27 | 1984-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-25 | 1987-08-27 | 1988-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-25 | 1991-08-27 | 1992-02-26 | $7700.00 | Window Closed / Lapsed |