US2677832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible bed
Assignee: Individual
•
Filing: 1951-09-14
•
Granted: 1954-05-11
•
Expires: 1971-09-14
Abstract
No abstract record available.
Inventors
- 👤 Emil C Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:28
CPC Classifications
A; A47; A47D; A47D7/00; A47D7/01; A47D11/00; A47D11/005; A47D9/00; A47D9/008; A47D9/012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US514401A
Cited
US1193272A
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US1285689A
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US1388783A
Cited
US2360575A
Cited
US2478028A
Cited
US2486466A
Cited
US2483938A
Cited
US2555032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |