US2701514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for pressurizable aircraft cabins
Assignee: Douglas Aircraft Co Inc
•
Filing: 1951-04-12
•
Granted: 1955-02-08
•
Expires: 1971-04-12
Abstract
No abstract record available.
Inventors
- 👤 Mar Bruce E Del
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:03
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/02; B64D13/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2208554A
Cited
US2321582A
Cited
US2549673A
Cited
US2585295A
Cited
US2515639A
Cited
US2578773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-07 | 1958-08-09 | 1959-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-07 | 1962-08-09 | 1963-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-07 | 1966-08-09 | 1967-02-08 | $7700.00 | Window Closed / Lapsed |