US2934770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power operated convertible sofa-bed
Assignee: Castro Convertibles Corp
•
Filing: 1957-02-18
•
Granted: 1960-05-03
•
Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Sumner C Willis
- 👤 John J Barabas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:37
CPC Classifications
A; A47; A47C; A47C17/00; A47C17/04; A47C17/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US604498A
Cited
US1397773A
Cited
US1978902A
Cited
US2322512A
Cited
US2445158A
Cited
US2802219A
Cited
US2785415A
Cited
FR1136345A
Cited
US2807174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |