Patent US2553460A successfully refreshed from Google Patents.
US2553460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible high chair
Assignee: Individual
•
Filing: 1945-08-11
•
Granted: 1951-05-15
•
Expires: 1965-08-11
Abstract
No abstract record available.
Inventors
- 👤 Elenora B Lehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:55
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/008; A47D1/0081; A47D1/0085
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE228051C
Cited
US367702A
Cited
US1440132A
Cited
US1452911A
Cited
GB303845A
Cited
US1892048A
Cited
US1973916A
Cited
US2155813A
Cited
US2332582A
Cited
US2394141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |