US2736367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring seat for a sofa-bed
Assignee: Individual
•
Filing: 1953-08-17
•
Granted: 1956-02-28
•
Expires: 1973-08-17
Abstract
No abstract record available.
Inventors
- 👤 Spound Albert Myron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:12
CPC Classifications
A; A47; A47C; A47C17/00; A47C17/04; A47C17/16; A47C17/17; A47C17/175; A47C17/1756; A47C17/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US607182A
Cited
FR535895A
Cited
US1414833A
Cited
US2019266A
Cited
US2323794A
Cited
GB519297A
Cited
US2231732A
Cited
US2371954A
Cited
US2314608A
Cited
US2359003A
Cited
US2654099A
Cited
AT171200B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |