US2613715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft tank assembly and supporting means for the same
Assignee: Lockheed Martin Corp
•
Filing: 1949-08-24
•
Granted: 1952-10-14
•
Expires: 1969-08-24
Abstract
No abstract record available.
Inventors
- 👤 Francis B Johnson
- 👤 George A Starleaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:32
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; B64D37/06; Y; Y10; Y10S; Y10S220/00; Y10S220/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB120088A
Cited
US1514410A
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DE460981C
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US2191239A
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US2257941A
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US2362297A
Cited
US2381400A
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US2400248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |