US3984110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chess set
Assignee: Individual
•
Filing: 1974-12-04
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Granted: 1976-10-05
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Expires: 1994-12-04
Abstract
Abstract A portable interfitting cylindrical chess set in which the pieces are made of clear and smoked transparent plastic, and are played on a board made of reflective aluminized Mylar. Included are a pair of hourglass-like chess timers for indicating the time interval spent on each move, and the pieces and timers, when assembled, form their own carrying case.
Inventors
- 👤 Richard R. Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:56
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00697; A63F2250/00; A63F2250/10; A63F2250/1063; A63F2250/1068; A63F2250/1084
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
266 words
A portable chess game apparatus comprising a flexible playing board of reflective aluminized material, having a plurality of rows of alternating light and dark squares; a plurality of hollow cylindrical clear plastic playing pieces to be placed on the squares and progressively moved from one row of squares to another row of squares; said playing pieces having diameters such that a portion of said pieces are telescopically nestable in other portions of said pieces; the vertical height of some said pieces varying to reflect their relative point count values; said reflective aluminized material of said playing board adapted to reflect light upwardly through said clear plastic pieces so that their top edges appear to be lighted; and timing means to indicate the total playing time allotted each player including; an elongate stem; a pair of hollow square clear plastic boxes each partially filled with sand and each having a broad flat face perpendicularly secured to one of the opposite ends of said stem a wedge shaped member mounted centrally in each box and extending thereacross dividing each box into two relatively equal compartments; and a notch in the narrow edge of each of said wedge shaped members connecting the respective compartments in each of said boxes to alone permit the sand to flow from one compartment to the other to indicate a time interval, said wedges in said boxes pointing at right angles to each other so that when one box is positioned to permit sand to flow from one compartment thereof to the other the opposite box is positioned so no sand will flow therein.
Claim 2
Dependent Claim
266 words
A portable chess game apparatus comprising a flexible playing board of reflective aluminized material, having a plurality of rows of alternating light and dark squares; a plurality of hollow cylindrical clear plastic playing pieces to be placed on the squares and progressively moved from one row of squares to another row of squares; said playing pieces having diameters such that a portion of said pieces are telescopically nestable in other portions of said pieces; the vertical height of some said pieces varying to reflect their relative point count values; said reflective aluminized material of said playing board adapted to reflect light upwardly through said clear plastic pieces so that their top edges appear to be lighted; and timing means to indicate the total playing time allotted each player including; an elongate stem; a pair of hollow square clear plastic boxes each partially filled with sand and each having a broad flat face perpendicularly secured to one of the opposite ends of said stem a wedge shaped member mounted centrally in each box and extending thereacross dividing each box into two relatively equal compartments; and a notch in the narrow edge of each of said wedge shaped members connecting the respective compartments in each of said boxes to alone permit the sand to flow from one compartment to the other to indicate a time interval, said wedges in said boxes pointing at right angles to each other so that when one box is positioned to permit sand to flow from one compartment thereof to the other the opposite box is positioned so no sand will flow therein.
Claim 3
Dependent Claim
38 words
The game of claim 1 wherein there are graduation marks on one side of the boxes to indicate the quantity of sand remaining in the box and thus the time remaining to be consumed in moving the pieces.
Claim 4
Dependent Claim
39 words
The game of claim 2 wherein one of the compartments in each of the boxes is tinted to designate the used sand and thus distinguish between time used in moving pieces, and the time remaining in the allotted time.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |