US3625516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invisible maze puzzle
Assignee: BLACK TULIP TOY CO Inc
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Filing: 1970-01-26
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Granted: 1971-12-07
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Expires: 1990-01-26
Abstract
Abstract A maze puzzle relying on the sense of touch of the player comprises a flat container of opaque material. On the inner surfaces of the top and bottom of the container are mazes. Slots in the opposite sidewalls of the container permit the passage of a flat rod, having a stud on one end thereof, into the pathways of the mazes so that depending on how the rod is inserted a different maze puzzle is available.
Inventors
- 👤 Martin J Handweiler
- 👤 Kenneth R Wisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:08
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/0078; A63F7/00; A63F7/04; A63F7/041; A63F3/00; A63F3/00895; A63F2003/00899; A63F2003/00927; A63F2003/0093
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
215 words
An invisible maze puzzle comprising a container having top and bottom surface members which are parallel planes and at least one wall interconnecting said surface members, at least said surface members being opaque, a plurality of walls extending from the inner face of one of said surface members, said plurality of walls being disposed in different directions in a predetermined manner to form a plurality of irregular pathways constituting a first maze, said sidewall being provided with at least one slot in a plane at right angles to said surface members, a first notch in one edge of said one slot for providing access to a pathway of said first maze, a flat rod having a thickness so as to slidably move in said slot, a stud extending upward from one face of said flat rod and adjacent one end thereof, said stud having such dimensions to slidably move through the pathways of said first maze, said first notch having such dimensions to permit the passage of said stud to a pathway of said first maze, and said sidewall being provided with a passageway means remote from said first slot, said passageway means having a shape to at least permit the free passage of the said stud and said one end of said flat rod.
Claim 2
Dependent Claim
215 words
An invisible maze puzzle comprising a container having top and bottom surface members which are parallel planes and at least one wall interconnecting said surface members, at least said surface members being opaque, a plurality of walls extending from the inner face of one of said surface members, said plurality of walls being disposed in different directions in a predetermined manner to form a plurality of irregular pathways constituting a first maze, said sidewall being provided with at least one slot in a plane at right angles to said surface members, a first notch in one edge of said one slot for providing access to a pathway of said first maze, a flat rod having a thickness so as to slidably move in said slot, a stud extending upward from one face of said flat rod and adjacent one end thereof, said stud having such dimensions to slidably move through the pathways of said first maze, said first notch having such dimensions to permit the passage of said stud to a pathway of said first maze, and said sidewall being provided with a passageway means remote from said first slot, said passageway means having a shape to at least permit the free passage of the said stud and said one end of said flat rod.
Claim 3
Dependent Claim
79 words
The maze puzzle of claim 1 wherein a second plurality of walls extends from the inner face of the other of said surface members, said second plurality of walls being disposed in different directions in a second predetermined manner to form a plurality of irregular pathways constituting a second maze, and a second notch similar to said first notch being provided in the other edge of said one slot for providing access to a pathway of said second maze.
Claim 4
Dependent Claim
62 words
The maze puzzle of claim 2 wherein said passageway means is common to said first and second mazes and is in the form of a second slot similar to said first slot and having third and fourth notches similar to said first and second notches, said third and fourth notches being in the first and second edges of said second slot, respectively.
Claim 5
Dependent Claim
21 words
The maze puzzle of claim 1 further comprising a one-way door means in at least one pathway of said first maze.
Claim 6
Dependent Claim
27 words
The maze puzzle of claim 2 further comprising a one-way door means in at least one pathway of at least one of said first and second mazes.
Claim 7
Dependent Claim
82 words
The maze puzzle of claim 1 wherein at least one of said surface members is of nonmagnetic material and further comprising a figure slidably movable over the outer face of said one surface member, and wherein one of said stud and said figure includes a permanent magnet and the other of said stud and said figure includes a magnetically attractable material whereby the movement of said stud through a maze guides said figure over the outer surface of said one surface member.
Claim 8
Dependent Claim
82 words
The maze puzzle of claim 2 wherein at least one of said surface members is of nonmagnetic material and further comprising a figure slidably movable over the outer face of said one surface member, and wherein one of said stud and said figure includes a permanent magnet and the other of said stud and said figure includes a magnetically attractable material whereby the movement of said stud through a maze guides said figure over the outer surface of said one surface member.
Claim 9
Dependent Claim
82 words
The maze puzzle of claim 4 wherein at least one of said surface members is of nonMagnetic material and further comprising a figure slidable movable over the outer face of said one surface member, and wherein one of said stud and said figure includes a permanent magnet and toe other of said stud and said figure includes a magnetically attractable material whereby the movement of said stud through a maze guides said figure over the outer surface of said one surface member.
Claim 10
Dependent Claim
303 words
An invisible maze puzzle comprising a container having top and bottom surface members which are parallel planes, a center surface member sandwiched between said top and bottom surface members, at least one sidewall interconnecting said surface members, a plurality of walls extending from one of the opposed faces of said center and top surface member, a plurality of walls extending from one of the opposed faces of said center and bottom surface member, each of said plurality of walls being disposed in different directions in a predetermined manner to form a plurality of irregular pathways constituting a different maze, said sidewall being provided with a first slot in a plane at right angles to said surface members and being disposed between said top and center surface member, a first notch in one edge of said first slot for providing access to a pathway of one of the mazes, said sidewall being provided with a second slot in a plane parallel to said surface members and being disposed between said bottom and center surface members, a second notch in one edge of said second slot for providing access to a pathway of another of another of the mazes, first and second flat rods, each rod having a thickness so as to slidably move in one of said slots, a stud extending upward from one face of each of said rods, said studs having such dimensions to slidably move through the pathways of said mazes, said notches having such dimensions to permit the passage of said studs to pathways of said mazes, and said sidewalls being provided with two passageway means, each of said passageway means having access to a pathway of a different one of said mazes and having a shape to at least permit the free passage of a stud and rod therethrough.
Claim 11
Dependent Claim
303 words
An invisible maze puzzle comprising a container having top and bottom surface members which are parallel planes, a center surface member sandwiched between said top and bottom surface members, at least one sidewall interconnecting said surface members, a plurality of walls extending from one of the opposed faces of said center and top surface member, a plurality of walls extending from one of the opposed faces of said center and bottom surface member, each of said plurality of walls being disposed in different directions in a predetermined manner to form a plurality of irregular pathways constituting a different maze, said sidewall being provided with a first slot in a plane at right angles to said surface members and being disposed between said top and center surface member, a first notch in one edge of said first slot for providing access to a pathway of one of the mazes, said sidewall being provided with a second slot in a plane parallel to said surface members and being disposed between said bottom and center surface members, a second notch in one edge of said second slot for providing access to a pathway of another of another of the mazes, first and second flat rods, each rod having a thickness so as to slidably move in one of said slots, a stud extending upward from one face of each of said rods, said studs having such dimensions to slidably move through the pathways of said mazes, said notches having such dimensions to permit the passage of said studs to pathways of said mazes, and said sidewalls being provided with two passageway means, each of said passageway means having access to a pathway of a different one of said mazes and having a shape to at least permit the free passage of a stud and rod therethrough.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |