US2250193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible seat and berth arrangement
Assignee: Boeing Co
•
Filing: 1937-04-14
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Granted: 1941-07-22
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Expires: 1957-04-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Elliott G Emery
- 👤 Jr Hudson T Patten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:47
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/24; B60N2/32; B60N2/34; B64; B64D; B64D11/00; B64D11/06; B64D11/0639; B64D11/064; B64D11/0641; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-07-21 | 1945-01-20 | 1945-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-21 | 1949-01-20 | 1949-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-21 | 1953-01-20 | 1953-07-22 | $7700.00 | Window Closed / Lapsed |