US2997724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible sofa bed
Assignee: Metropolitan Furniture Manufacturing Co
•
Filing: 1958-12-22
•
Granted: 1961-08-29
•
Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Jules M Heumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:29
CPC Classifications
A; A47; A47C; A47C17/00; A47C17/04; A47C17/13; A47C17/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1381172A
Cited
US755089A
Cited
US1684936A
Cited
US2000471A
Cited
US2019218A
Cited
DE842244C
Cited
FR1117573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |