Patent US3856309A successfully refreshed from Google Patents.
US3856309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chess piece with removable instructional base
Assignee: Field Manufacturing Co Inc
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Filing: 1974-04-08
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Granted: 1974-12-24
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Expires: 1994-04-08
Abstract
Abstract A selectively removable base for a chess playing piece having movement instructions displayed thereon for the chess playing piece. The attached base is useful for the beginnger, and is merely disconnected, because not needed, by the more experienced player, or is disconnected by the beginner when he advances to the stage of play where he no longer needs rudimentary instructions.
Inventors
- 👤 S Helfgott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:22
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00697; A63F3/02; A63F3/022; A63F2003/025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
107 words
A combination of a chess playing piece having a sized circular base and an attached explanatory base for a beginning player for said playing piece that is removable from said attachment therewith when used by an experienced player, said explanatory base comprising a body having an upper surface and a side surface, said side surface having instructions relating to the movement of said chess playing piece displayed thereon, and said upper surface having a sized circular depression formed therein adapted to engage in a force fit said circular base of said chess playing piece, whereby said explanatory base is only removably attached to said chess playing piece.
Claim 2
Dependent Claim
107 words
A combination of a chess playing piece having a sized circular base and an attached explanatory base for a beginning player for said playing piece that is removable from said attachment therewith when used by an experienced player, said explanatory base comprising a body having an upper surface and a side surface, said side surface having instructions relating to the movement of said chess playing piece displayed thereon, and said upper surface having a sized circular depression formed therein adapted to engage in a force fit said circular base of said chess playing piece, whereby said explanatory base is only removably attached to said chess playing piece.
Claim 3
Dependent Claim
32 words
The combination as claimed in claim 1 wherein said explanatory base is fabricated of plastic, and said depression formed in said upper surface thereof is bounded by a peripheral chess piece-engaging lip.
Claim 4
Dependent Claim
32 words
The combination as claimed in claim 2 wherein the body of said explanatory base is of a circular shape so as to appear to be an extension of said chess playing piece.
Claim 5
Dependent Claim
38 words
The combination as claimed in claim 3 wherein said body of said explanatory base is generally conical so as to function as a steady support for said chess playing piece when the same is in mounted position thereon.
Claim 6
Dependent Claim
37 words
The combination as claimed in claim 4 wherein said body of said explanatory base is formed as a comparatively thin wall of plastic so as to facilitate being snapped into frictional engagement with said chess playing piece.
Claim 7
Dependent Claim
51 words
The combination as claimed in claim 5 wherein on said explanatory base is shown the name and a pictorial representation of the chess piece said explanatory base attaches to, the direction of movement said chess piece is capable of traveling, and the maximum amount of squares said chess piece may travel.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |