US3677550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chessmen
Assignee: Individual
•
Filing: 1970-10-26
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Granted: 1972-07-18
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Expires: 1990-10-26
Abstract
Abstract Each piece in a set of chessmen, other than the kings, has a uniform cross-sectional shape which is linearly symbolic of its permitted mobility on a chessboard.
Inventors
- 👤 Ronald Alexander Mathers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:46
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00697; A63F2003/00747; A63F2003/00794; A63F2003/00892
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A set of chess pieces consisting of one king, one queen, two rooks, two bishops, two knights and eight pawns, wherein the queen, the rooks, and the bishops have the uniform crosssectional shapes shown in FIGS. 1, 2 and 4, respectively, of the drawing.
Claim 2
Dependent Claim
44 words
A set of chess pieces consisting of one king, one queen, two rooks, two bishops, two knights and eight pawns, wherein the queen, the rooks, and the bishops have the uniform crosssectional shapes shown in FIGS. 1, 2 and 4, respectively, of the drawing.
References Cited (Backward Citations)
DE472387C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |