Patent JPS4720530U successfully refreshed from Google Patents.
US4249741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Board for three player draughts and the like
Assignee: UITGEVERIJ VAN DER LAKEN A CORP OF NETHERLANDS
•
Filing: 1978-09-05
•
Granted: 1981-02-10
•
Expires: 1998-09-05
Abstract
Abstract A game board for the simultaneous play of draughts, chess and the like by three players. The board is of hexagonal shape with a three-sided blocking area in the center. The board is divided into three equal territories. On the board a lattice of 3×1/2a×b playing fields.
Inventors
- 👤 Thomas M. Buijtendorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:59
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/00176
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
117 words
A game board with which games that are normally played by two players on a rectangular board of a×b fields can be played by three players on one board with minor adaptations of the rules, characterized by said one board having a hexagonal outer circumference and a blocking area in the centre, there being three lines of symmetry, three opposed sides of the board being bounded by a fields and three other opposing sides by b fields, and the lengths and shapes of the sides and the boundary of the blocking area being designed so as to form a pattern of 3×1/2a×b substantially rectangular fields of approximately equal size, with the board having three axes of symmetry.
Claim 2
Dependent Claim
117 words
A game board with which games that are normally played by two players on a rectangular board of a×b fields can be played by three players on one board with minor adaptations of the rules, characterized by said one board having a hexagonal outer circumference and a blocking area in the centre, there being three lines of symmetry, three opposed sides of the board being bounded by a fields and three other opposing sides by b fields, and the lengths and shapes of the sides and the boundary of the blocking area being designed so as to form a pattern of 3×1/2a×b substantially rectangular fields of approximately equal size, with the board having three axes of symmetry.
Claim 3
Dependent Claim
74 words
A game board according to claim 1, wherein the blocking area in the centre has three sides designed so that all lines of play extending from three non-adjacent sides of the board to the two opposing sides are uninterrupted; and that of the lines of play extending substantially parallel to said three non-adjacent sides of the board, the respective ones located closest to the centre of the board are interrupted by said blocking area.
Claim 4
Dependent Claim
16 words
A game board according to claim 1, wherein three non-adjacent sides of the board are rectilinear.
Claim 5
Dependent Claim
23 words
A game board according to claim 1, wherein the fields are of two different colors in accordance with the pattern of a chessboard.
Claim 6
Dependent Claim
19 words
A game board according to claim 4, wherein all the sides of the board are bounded by 8 fields.
Claim 7
Dependent Claim
60 words
A game board according to claim 1, wherein the fields are of two different colors in accordance with the pattern of a chessboard, the board has three non-adjacent rectilinear sides, and all the sides of the board are bounded by 8 fields with a field of the darker color at the left end of each of said non-adjacent rectilinear sides.
References Cited (Backward Citations)
FR335792A
Cited
US3652091A
Cited
US3776554A
Cited
DE2228465A1
Cited
US3963242A
Cited
CH575243A5
Cited
US3917273A
Cited
US4026557A
Cited
US3998464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |