US3577671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction kits for toys and models
Assignee: Individual
•
Filing: 1969-02-26
•
Granted: 1971-05-04
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Expires: 1989-02-26
Abstract
Abstract A construction kit for toys comprises a plurality of components for fitting together in various ways. One component is in the form of a hollow cube open on one, and only one face, having projections on some faces and recesses on the other faces, adapted for frictional interengagement. Half-cube components may be provided for sliding into said cubic components. Other components comprise a flat sheet with upstanding projections, and a flat sheet with recesses, adapted for engagement respectively with recesses and projections of cubic components: a like flat sheet with integral guide or rail means: and a like flat plate with legs extending perpendicular thereto.
Inventors
- 👤 Roy Perry Woollett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; A63H33/08; A63H33/086
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
96 words
A construction kit for toys or models comprising a plurality of like hollow cubic components, each open at one, and only one, face, while externally on at least one other face is provided a projection of less height than the thickness of the component wall, and on each of the remaining faces is provided a shallow recess of dEpth substantially equal to the height of said projection, said projection and recesses being of common shape and size, in order that a projection of one component may make frictional engagement with any recess of another like component.
Claim 2
Dependent Claim
96 words
A construction kit for toys or models comprising a plurality of like hollow cubic components, each open at one, and only one, face, while externally on at least one other face is provided a projection of less height than the thickness of the component wall, and on each of the remaining faces is provided a shallow recess of dEpth substantially equal to the height of said projection, said projection and recesses being of common shape and size, in order that a projection of one component may make frictional engagement with any recess of another like component.
Claim 3
Dependent Claim
27 words
A construction kit according to claim 1 wherein one face of said component is provided with a projection, and each of the remaining faces with a recess.
Claim 4
Dependent Claim
28 words
A construction kit according to claim 1 wherein two faces of a component are provided with said projections and each of the remaining three faces with a recess.
Claim 5
Dependent Claim
16 words
A construction kit according to claim 1 wherein two adjacent faces are provided with said projections.
Claim 6
Dependent Claim
22 words
A construction kit according to claim 1 wherein each of said projections comprises a substantially square plinth upstanding from a component face.
Claim 7
Dependent Claim
20 words
A construction kit according to claim 1 wherein the edges of said projections and said recesses are shaped for interlocking.
Claim 8
Dependent Claim
22 words
A construction kit according to claim 1 wherein each of said projections comprises a substantially square rib upstanding from a component face.
Claim 9
Dependent Claim
30 words
A construction kit according to claim 1 comprising a plurality of additional components each comprising a half-cube shaped and dimensioned for sliding fit into any one of said cubic components.
Claim 10
Dependent Claim
69 words
A construction kit according to claim 1 wherein each cubic component is provided internally with slots extending substantially perpendicular to the plane of the open face of the component, said kit comprising a plurality of additional components each of half-cubic shape, dimensioned for sliding fit into a cubic component, and having at two opposite sides projecting ribs adapted to engage slidably in said internal slots of said cubic components.
Claim 11
Dependent Claim
40 words
A construction kit according to claim 1 comprising an additional component in the form of a substantially flat sheet provided with upstanding projections on one face each shaped and dimensioned for frictional engagement in a recess of a cubic component.
Claim 12
Dependent Claim
37 words
A construction kit according to claim 1 comprising an additional component in the form of a substantially flat rectangular sheet provided with recesses each shaped and dimensioned for frictional engagement with a projection of a cubic member.
Claim 13
Dependent Claim
51 words
A construction kit according to claim 1 comprising an additional component in the form of a substantially flat rectangular sheet provided with recesses each shaped and dimensioned for frictional engagement with a projection of a cubic member, and slotted guide means integral with, and extending along one side of, said sheet.
Claim 14
Dependent Claim
68 words
A construction kit according to claim 1 comprising an additional component in the form of a substantially square flat sheet formed on its upper face with a recess shaped and dimensioned for frictional engagement with a projection of a cubic component, and having rigid integral legs on opposite edges of said sheet, downwards from the undersurface of said sheet and substantially perpendicular to the plane of the sheet.
Claim 15
Dependent Claim
27 words
A construction kit according to claim 1 wherein the components are moulded from plastics material having some degree of resilience to assist releasable functional interlocking of components.
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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |