Patent US4083123A successfully refreshed from Google Patents.
US4083123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jigsaw puzzle with extra interlock
Assignee: Individual
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Filing: 1977-03-21
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Granted: 1978-04-11
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Expires: 1997-03-21
Abstract
Abstract This invention is a teaching aid for use by children and others in learning the association between mechanical items. It is characterized by two parts of a mechanical item which are capable of being connected together, being respectively connected to different portions of pieces of a jigsaw puzzle-type apparatus in such manner that when the jigsaw puzzle is correctly assembled, the matching mechanical elements will be in a position to be joined together, and in such manner that when all such items are correctly joined together the jigsaw puzzle will remain in an assembled configuration until the elements are disconnected.
Inventors
- 👤 Cynthia S. Livermore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:40
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/10; A63F2009/1016; A63F2250/00; A63F2250/12; A63F2250/127; A63F2250/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
A teaching aid comprising: a jigsaw puzzle comprising a plurality of interlocking parts; at least one part of a multiple part element attached to each jigsaw puzzle piece; a second part of each such element attached to a different jigsaw puzzle piece in such manner that the two parts of the same element match, and interconnect with one another when the jigsaw puzzle pieces are in proper relationship to one another and not in any other position.
Claim 2
Dependent Claim
77 words
A teaching aid comprising: a jigsaw puzzle comprising a plurality of interlocking parts; at least one part of a multiple part element attached to each jigsaw puzzle piece; a second part of each such element attached to a different jigsaw puzzle piece in such manner that the two parts of the same element match, and interconnect with one another when the jigsaw puzzle pieces are in proper relationship to one another and not in any other position.
Claim 3
Dependent Claim
87 words
A teaching aid comprising in combination: a jigsaw puzzle comprised of a plurality of interlocking individual pieces; one portion of a hardware-type item consisting of at least two interconnecting parts attached to each of said jigsaw puzzle pieces adjacent an edge thereof; and a second part of said hardware-type item attached to a different jigsaw puzzle piece adjacent the edge thereof in such manner that it interlocks with the first part when, and only when, the matching jigsaw puzzle pieces are in proper relationship to one another.
Claim 4
Dependent Claim
87 words
A teaching aid comprising in combination: a jigsaw puzzle comprised of a plurality of interlocking individual pieces; one portion of a hardware-type item consisting of at least two interconnecting parts attached to each of said jigsaw puzzle pieces adjacent an edge thereof; and a second part of said hardware-type item attached to a different jigsaw puzzle piece adjacent the edge thereof in such manner that it interlocks with the first part when, and only when, the matching jigsaw puzzle pieces are in proper relationship to one another.
Claim 5
Dependent Claim
85 words
A teaching aid comprising a jigsaw puzzle including at least nine different pieces, said jigsaw puzzle being in the form of a rectangle when fully assembled; at least one part of a multiple part hardware-type fastener fastened to each piece of the jigsaw puzzle; and the second part of each such hardware-type fastener fastened to an adjacent and matching jigsaw puzzle piece in such manner that the two parts may be connected together when, and only when, the jigsaw puzzle pieces are properly assembled together.
Claim 6
Dependent Claim
85 words
A teaching aid comprising a jigsaw puzzle including at least nine different pieces, said jigsaw puzzle being in the form of a rectangle when fully assembled; at least one part of a multiple part hardware-type fastener fastened to each piece of the jigsaw puzzle; and the second part of each such hardware-type fastener fastened to an adjacent and matching jigsaw puzzle piece in such manner that the two parts may be connected together when, and only when, the jigsaw puzzle pieces are properly assembled together.
Claim 7
Dependent Claim
85 words
The apparatus of claim 3 wherein at least three of the said jigsaw puzzle pieces are equipped with two different parts of two different hardware-type connecting items and wherein each of said three parts of the jigsaw puzzle will match with other parts of the jigsaw puzzle, when properly assembled, in such manner that the connecting portions on each of said three parts of the jigsaw puzzle will connect to a second part of a multiple part element affixed to the other jigsaw puzzle parts.
References Cited (Backward Citations)
US2972820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |