Patent US3613291A successfully refreshed from Google Patents.
US3613291A
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US
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Building block game
Assignee: Individual
•
Filing: 1969-09-11
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Granted: 1971-10-19
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Expires: 1989-09-11
Abstract
Abstract A BUILDING BLOCK SET, ESSENTIALLY CONSISTING OF MODULAR COMPONENTS OF A PLASTIC MATERIAL, ADAPTED FOR FIXED ASSEMBLY FOR INTERFITTING PEGS AND CORRESPONDING HOLES AND/ OR ROTARY ASSEMBLY BY SPECIAL LOCKING ADAPTERS TO EACH OTHER FOR FORMING A LARGE NUMBER OF DIFFERENT FIXED STRUCTURAL AND/OR ROTARY ASSEMBLIES LIMITED ONLY BY THE NUMBER OF INDIVIDUAL COMPONENTS OF A GAME SET.
Inventors
- 👤 August Wilhelm Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:38
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/108
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |