Patent US3909000A successfully refreshed from Google Patents.
US3909000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylindrical chess game apparatus
Assignee: Individual
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Filing: 1974-11-11
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Granted: 1975-09-30
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Expires: 1994-11-11
Abstract
Abstract The game apparatus comprises a cylinder having a playing surface marked with playing positions in a plurality of ranks. Two sets of chess pieces are used, each comprising one set of major pieces and two sets of pawn pieces with half the pawns being distinguishable from the other half. Means are provided for adherence of the sets of chess pieces to the cylindrical playing surface such that an orbital chess game may be played.
Inventors
- 👤 David A Akers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:30
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/00261; A63F3/00214; A63F3/02; A63F2003/00264; A63F2003/00287; A63F3/00574; A63F2003/0063
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A game apparatus comprising: two sets of chess pieces; a cylinder having a playing surface marked with playing positions in a plurality of ranks and files; each set of chess pieces comprising a plurality of major pieces equal in number to the number of files on the playing surface and a plurality of pawns equal in number to twice the number of files on the playing surface, said cylinder including a number of ranks of playing positions exceeding the total number of ranks of chess pieces to enable the playing of cylindrical chess on the palying surface, and said sets being distinguishable from each other and half of said pawns of a set being distinguishable from the other half of the same set.
Claim 2
Dependent Claim
123 words
A game apparatus comprising: two sets of chess pieces; a cylinder having a playing surface marked with playing positions in a plurality of ranks and files; each set of chess pieces comprising a plurality of major pieces equal in number to the number of files on the playing surface and a plurality of pawns equal in number to twice the number of files on the playing surface, said cylinder including a number of ranks of playing positions exceeding the total number of ranks of chess pieces to enable the playing of cylindrical chess on the palying surface, and said sets being distinguishable from each other and half of said pawns of a set being distinguishable from the other half of the same set.
Claim 3
Dependent Claim
15 words
A game apparatus as defined in claim 1 wherein said playing surface includes fourteen ranks.
Claim 4
Dependent Claim
15 words
A game apparatus as defined in claim 2 wherein the playing surface includes eight files.
Claim 5
Dependent Claim
66 words
A game apparatus comprising: two sets of chess pieces; a cylinder having a playing surface marked with playing positions in eight files and sufficient ranks to enable the playing of a game of chess; each set of said chess pieces comprising eight major pieces and sixteen pawns with half the pawns being distinguishable from the other half and each set being distinguishable from the other set.
Claim 6
Dependent Claim
66 words
A game apparatus comprising: two sets of chess pieces; a cylinder having a playing surface marked with playing positions in eight files and sufficient ranks to enable the playing of a game of chess; each set of said chess pieces comprising eight major pieces and sixteen pawns with half the pawns being distinguishable from the other half and each set being distinguishable from the other set.
Claim 7
Dependent Claim
20 words
A game apparatus as defined in claim 4 wherein said playing surface includes at least one hundred twelve playing positions.
Claim 8
Dependent Claim
24 words
A game apparatus as defined in claim 5 wherein said cylinder and chess pieces include means for holding the pieces onto the playing surface.
References Cited (Backward Citations)
US3359003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |