Patent US4625969A successfully refreshed from Google Patents.
US4625969A
Expired / Lapsed
US
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Jigsaw puzzle
Assignee: Individual
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Filing: 1985-02-19
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Granted: 1986-12-02
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Expires: 2005-02-19
Abstract
Abstract A jigsaw puzzle having sets of puzzle pieces with the pieces of a first set being of significantly different size than those pieces of a second set. The above sets of pieces are spaced from one another by an intermediate set of puzzle pieces of graduated size which is generally indicative of the spatial relationship of the intermediate puzzle pieces to the first and second sets. The overall configuration of the puzzle may be polygonal or curvilinear.
Inventors
- 👤 John L. Donnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:05
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
104 words
A jigsaw puzzle comprising, a first set of relatively large contiguous puzzle pieces of substantially the same size and comprising one area of the puzzle, a second set of relatively small contiguous puzzle pieces of substantially the same size and comprising a second area of the puzzle, said second set offset from said first set, intermediate sized puzzle pieces graduated in size to provide a puzzle wherein piece size is indicative of proper piece location between the first set and the second set of pieces, and said first set of contiguous puzzle pieces occuping a marginal area of a jigsaw puzzle of rectangular shape.
Claim 2
Dependent Claim
104 words
A jigsaw puzzle comprising, a first set of relatively large contiguous puzzle pieces of substantially the same size and comprising one area of the puzzle, a second set of relatively small contiguous puzzle pieces of substantially the same size and comprising a second area of the puzzle, said second set offset from said first set, intermediate sized puzzle pieces graduated in size to provide a puzzle wherein piece size is indicative of proper piece location between the first set and the second set of pieces, and said first set of contiguous puzzle pieces occuping a marginal area of a jigsaw puzzle of rectangular shape.
Claim 3
Dependent Claim
24 words
The puzzle claimed in claim 1 wherein said first set, said second set and said intermediate set comprise a puzzle of elongate rectangular shape.
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) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |