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US3624955A Expired / Lapsed US ⏱️ 0.0 years remaining

Disc-shaped blocks with cylindrical projections and concentric walls

Assignee: Nintendo Playing Card Co Ltd
•
Filing: 1969-02-06
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Granted: 1971-12-07
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Expires: 1989-02-06
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Abstract

Abstract EACH BLOCK OF THE MUTURALLY COUPABLE ASSEMBLING TOY HAS A DISC BASE PLATE, ON ONE SIDE OF WHICH IS PROVIDED ONE OR MORE CYLINDRICAL WALLS PROJECTING VERTICALLY AND CONCENTRICALLY THEREFROM AND ON THE OTHER SIDE ARE PROVIDED PLURAL CYLINDRICAL PROJECTIONS. THE BLOCK OF ONE EMBODIMENT HAS A CYLINDRICAL OUTERMOST WALL AND THE BLOCK OF ANOTHER EMBODIMENT HAS A PARTIALLY CONICAL OUTERMOST WALL. THESE WALLS AND PROJECTIONS ARE ARRANGED AND CONSTRUCTED SO THAT AT LEAST SOME OF THE PROJECTIONS OF ONE BLOCK ARE FITTED BETWEEN THE WALLS OF ANOTHER BLOCK WHEN PILED ONE ON ANOTHER.

Inventors

  • 👤 Takashi Matsubayashi
  • 👤 Hirozo Matsubayashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 01:29
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; A63H33/08; A63H33/086

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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

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