US2964760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding double bed frame with anti-sag device
Assignee: Seng Co
•
Filing: 1957-03-06
•
Granted: 1960-12-20
•
Expires: 1977-03-06
Abstract
No abstract record available.
Inventors
- 👤 Fox Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:13
CPC Classifications
A; A47; A47C; A47C17/00; A47C17/04; A47C17/22; A47C17/23; A47C17/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US240568A
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US398334A
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US812939A
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US1012558A
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US1789094A
Cited
US2653329A
Cited
US2584145A
Cited
US2727250A
Cited
US2829382A
Cited
US2803019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |