US2767774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High chair with tray attachment
Assignee: Individual
•
Filing: 1952-03-13
•
Granted: 1956-10-23
•
Expires: 1972-03-13
Abstract
No abstract record available.
Inventors
- 👤 George T Derby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:54
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/008; A47D1/0081; A47D1/002; A47D1/004; A47D1/0085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US550613A
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US649831A
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US724475A
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US1505518A
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US1540616A
Cited
US1787108A
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US2516265A
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US2478280A
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US2563347A
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US2546871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |