US3552055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy building blocks
Assignee: Nintendo Playing Card Co Ltd
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Filing: 1968-12-11
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Granted: 1971-01-05
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Expires: 1988-12-11
Abstract
Abstract A TOY BUILDING HAVING A PLURALITY OF CYLINDRICAL PROJECTIONS FORMED ON ONE SIDE AND AN ELASTIC CLAMPING PROJECTION ON THE OPPOSITE SIDE THEREOF. IN ASSEMBLING SUCH BLOCKS SAID ELASTIC CLAMPING PROJECTION OF ONE BLOCK ENGAGES WITH THE CYLINDRICAL PROJECTIONS OF ANOTHER BLOCK SO AS TO BE COMBINED TO FORM ONE PIECE.
Inventors
- 👤 Takashi Matsubayashi
- 👤 Hirozo Matsubayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:32
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)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |