Patent US2692744A successfully refreshed from Google Patents.
US2692744A
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US
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Aircraft cargo handling system
Assignee: Boeing Co
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Filing: 1947-09-27
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Granted: 1954-10-26
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Expires: 1967-09-27
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Burkhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:47
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1554765A
Cited
US2379364A
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US2345615A
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US2390230A
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US2343638A
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US2441367A
Cited
US2426862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |