US2663523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft interconnecting mechanism
Assignee: Boeing Co
•
Filing: 1949-08-02
•
Granted: 1953-12-22
•
Expires: 1969-08-02
Abstract
No abstract record available.
Inventors
- 👤 Clifford J Leisy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:25
CPC Classifications
B; B64; B64D; B64D39/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806834A
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US1728449A
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US1544032A
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US1729354A
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GB346181A
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US1818834A
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US1848372A
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US2334323A
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US2402283A
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US2433473A
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US2385392A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |