Patent US2554851A successfully refreshed from Google Patents.
US2554851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible baby chair and book rack
Assignee: Individual
•
Filing: 1949-03-12
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Granted: 1951-05-29
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Expires: 1969-03-12
Abstract
No abstract record available.
Inventors
- 👤 Borthwick Eva Millicent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:14
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/008; A47D1/0085; A47D1/006; A47D11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US83801A
Cited
US960360A
Cited
US1046299A
Cited
US1074701A
Cited
US2470834A
Cited
US2418731A
Cited
US2491676A
Cited
US2479086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |