Patent US6073929A successfully refreshed from Google Patents.
US6073929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Puzzle constituted by a plurality of pieces to be assembled
Assignee: Individual
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Filing: 1998-06-26
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Granted: 2000-06-13
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Expires: 2018-06-26
Abstract
Abstract A puzzle consisting of several pieces to be assembled to form a structure of predetermined shape or aspect, each piece including at least one tongue or a cut-out into which is to be fitted a tongue of an adjacent piece. Each tongue or cut-out is chamfered with respect to the surface of the piece along a periphery of the tongue or cut-out, and wherein each tongue or cut-out is provided with a counter-chamfer extending along at least a portion of the chamfer of the tongue or cut-out.
Inventors
- 👤 Jean-Charles Nahon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:06
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/10; A63F9/12; A63F9/1208; A63F9/001; A63F2009/002; A63F2009/0027; A63F2009/1094; A63F2009/124; Y; Y10; Y10T; Y10T428/00; Y10T428/19; Y10T428/192; Y10T428/195
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
82 words
A puzzle comprising: a plurality of pieces to be assembled to form a structure of predetermined shape or aspect, each piece including at least one tongue or a cut-out into which is to be fitted a tongue of an adjacent piece, each tongue or cut-out including a chamfer with respect to a surface of said piece along a periphery of said tongue or cut-out and having a counter-chamfer extending over at least a portion of said chamfer of said tongue or cut-out.
Claim 2
Dependent Claim
82 words
A puzzle comprising: a plurality of pieces to be assembled to form a structure of predetermined shape or aspect, each piece including at least one tongue or a cut-out into which is to be fitted a tongue of an adjacent piece, each tongue or cut-out including a chamfer with respect to a surface of said piece along a periphery of said tongue or cut-out and having a counter-chamfer extending over at least a portion of said chamfer of said tongue or cut-out.
Claim 3
Dependent Claim
22 words
A puzzle in accordance with claim 1 wherein said counter-chamfer extends essentially along the entire periphery of said tongue or said cut-out.
Claim 4
Dependent Claim
26 words
A puzzle in accordance with claim 1 wherein said counter-chamfer is constituted by several parts sequentially distributed over the periphery of said tongue or said cut-out.
Claim 5
Dependent Claim
17 words
A puzzle in accordance with claim 1 including extraction notches formed at a base of said tongues.
Claim 6
Dependent Claim
56 words
A puzzle in accordance with claim 1 wherein external edges of each piece are slanted with respect to the perpendicular (N) to said surface of each piece at each point of said external edges, and said external edges are convergent at a side of a center of curvature (C', C') of said surface of each piece.
Claim 7
Dependent Claim
22 words
A puzzle in accordance with claim 1 wherein said tongues have a different thickness than that of a body of said pieces.
Claim 8
Dependent Claim
39 words
A puzzle in accordance with claim 1 wherein at least one tongue extends in a direction not parallel to said surface of said corresponding piece in an interlocking area of said at least one tongue to said corresponding piece.
Claim 9
Dependent Claim
17 words
A puzzle in accordance with claim 1 wherein said pieces have lightening hollows on a back side.
Claim 10
Dependent Claim
18 words
A puzzle in accordance with claim 1 wherein at least one piece is formed by several interlocking elements.
Claim 11
Dependent Claim
38 words
A puzzle in accordance with claim 1 including a self-supporting frame formed by interlocking elements, the majority of said elements being provided with at least one cut-out or a tongue for locking of other pieces of the puzzle.
References Cited (Backward Citations)
GB2176411A
Cited
GB2231808A
Cited
FR2648358A1
Cited
US5052158A
Cited
GB2248402A
Cited
WO1996033785A1
Cited
FR2735375A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-06-13 | 2003-12-13 | 2004-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-06-13 | 2007-12-13 | 2008-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-06-13 | 2011-12-13 | 2012-06-13 | $7700.00 | Window Closed / Lapsed |