Patent US3057662A successfully refreshed from Google Patents.
US3057662A
Expired / Lapsed
US
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Convertible chair and sleeping berths
Assignee: Individual
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Filing: 1960-10-31
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Granted: 1962-10-09
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Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Grady L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:55
CPC Classifications
B; B64; B64D; B64D11/00; B64D11/06; B64D11/0639; B64D11/0641; B61; B61D; B61D31/00; B64D11/064; B64D11/0642; B64D11/0643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |