US3481068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy blocks with means permitting greater tolerance in the alignment of male and female connectors
Assignee: Playskool Inc
•
Filing: 1965-07-08
•
Granted: 1969-12-02
•
Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 Nils I Paulson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:26
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; A63H33/08; A63H33/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA700091A
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GB190917634A
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GB676469A
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US2949692A
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GB883895A
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GB890771A
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GB935308A
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GB976761A
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GB996811A
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FR1357579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |