Patent US3565442A successfully refreshed from Google Patents.
US3565442A
Expired / Lapsed
US
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Pyramid puzzle
Assignee: Individual
•
Filing: 1969-03-14
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Granted: 1971-02-23
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Expires: 1989-03-14
Abstract
Abstract A three-sided pyramid is assembled from an octahedron and four smaller pyramids, the faces of the smaller pyramids and the octahedron having die markings thereon, the assembled pyramid in a solved configuration having the die markings on each visible face total thirteen.
Inventors
- 👤 Burton L Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:34
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/12; A63F9/20; Y; Y10; Y10S; Y10S52/00; Y10S52/09
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
A pyramid puzzle comprising, in combination, an octahedron and four smaller pyramids, the faces of said octahedron and said smaller pyramids being equilateral triangles of the same size, the faces of said smaller pyramids and said octahedron being distinguishably coded with numerical indications, said smaller pyramids being assembled about four faCes of said octahedron forming an assembled pyramid, said numerical indications on the upper visible faces of the assembled pyramid adding up to the same total indicating one solved configuration of said octahedron and said assembled smaller pyramids.
Claim 2
Dependent Claim
88 words
A pyramid puzzle comprising, in combination, an octahedron and four smaller pyramids, the faces of said octahedron and said smaller pyramids being equilateral triangles of the same size, the faces of said smaller pyramids and said octahedron being distinguishably coded with numerical indications, said smaller pyramids being assembled about four faCes of said octahedron forming an assembled pyramid, said numerical indications on the upper visible faces of the assembled pyramid adding up to the same total indicating one solved configuration of said octahedron and said assembled smaller pyramids.
Claim 3
Dependent Claim
26 words
The combination according to claim 1 wherein said numerical indications are from blank to six, said indications totaling 13 on the sides of said assembled pyramid.
Claim 4
Dependent Claim
55 words
The combination according to claim 2 wherein the faces of said octahedron have formed thereon numerical indications five, one, blank, one, blank, four, four, and three; and said four smaller pyramids have formed thereon two, six, two, and blank; five, one, five, and blank; one, four, blank, and blank; and one, two, six, and blank.
Claim 5
Dependent Claim
16 words
The combination according to claim 3 wherein said numerical indications on said faces are die markings.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |