Patent US3652091A successfully refreshed from Google Patents.
US3652091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three player chess board
Assignee: Individual
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Filing: 1971-01-06
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Granted: 1972-03-28
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Expires: 1991-01-06
Abstract
Abstract A game board for simultaneous play of chess or the like by three players. The board is in the shape of a hexagon and is divided by transverse and longitudinal lines into three discrete territories, each of which territories includes 32 play spaces. Each territory includes a base defined by a side of said hexagon, side borders defined by half of each of the sides of the hexagon adjacent the base and frontier borders defined by lines extending from the terminal ends of the sides remote from the base to the geometric center of the hexagon. Each territory is defined into 32 play spaces by longitudinal lines extending from the base to the frontier borders and transverse lines extending from the sides to an apex line running from the center of the base.
Inventors
- 👤 Robert Zubrin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:52
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/00176
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
28 words
A game board having the peripheral configuration shown in FIG. 1 of the drawing and having on its surface the checkered game pattern shown in said FIG. 1.
Claim 2
Dependent Claim
28 words
A game board having the peripheral configuration shown in FIG. 1 of the drawing and having on its surface the checkered game pattern shown in said FIG. 1.
Claim 3
Dependent Claim
208 words
An unobstructed game board for the play of chess by three participants comprising an equilateral hexagonal board member having its surface divided into three identical territories, each territory including 32 play spaces, each said territory including a base defined by a side of said hexagon, side borders defined by half of each of the sides of the hexagon adjacent the ends of the base, and frontier borders defined by lines leading from the terminal ends of the sides remote from the base to the geometric center of the hexagon, each said territory being divided into 32 play spaces by longitudinal lines extending from the base to the frontier borders and transverse lines extending from the sides to an apex line running from the center of the base to the intersection of the frontier borders, said transverse lines being three in number extendIng to each side of said apex line and running from points spaced one-quarter, one-half and three-quarters the length of said apex line from said base respectively to points on said sides spaced one-quarter, one-half and three-quarters the length of said sides taken from said base, said longitudinal lines in each symmetrical half of said territories dividing said transverse lines of said half into four equal increments.
Claim 4
Dependent Claim
208 words
An unobstructed game board for the play of chess by three participants comprising an equilateral hexagonal board member having its surface divided into three identical territories, each territory including 32 play spaces, each said territory including a base defined by a side of said hexagon, side borders defined by half of each of the sides of the hexagon adjacent the ends of the base, and frontier borders defined by lines leading from the terminal ends of the sides remote from the base to the geometric center of the hexagon, each said territory being divided into 32 play spaces by longitudinal lines extending from the base to the frontier borders and transverse lines extending from the sides to an apex line running from the center of the base to the intersection of the frontier borders, said transverse lines being three in number extendIng to each side of said apex line and running from points spaced one-quarter, one-half and three-quarters the length of said apex line from said base respectively to points on said sides spaced one-quarter, one-half and three-quarters the length of said sides taken from said base, said longitudinal lines in each symmetrical half of said territories dividing said transverse lines of said half into four equal increments.
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) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |