US3133761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible child's chair
Assignee: Individual
•
Filing: 1963-04-03
•
Granted: 1964-05-19
•
Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Albert A Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:14
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/10; A47D1/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1337103A
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US1886963A
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US2493187A
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US2489084A
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US2710643A
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US2707987A
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US2875816A
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US3059965A
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US3083053A
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US3052500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |