US2701068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cargo loading hoist
Assignee: Douglas Aircraft Co Inc
•
Filing: 1951-07-27
•
Granted: 1955-02-01
•
Expires: 1971-07-27
Abstract
No abstract record available.
Inventors
- 👤 Donaold W Douglas
- 👤 Mar Bruce E Del
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:37
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/22; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2572
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2356155A
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US2379599A
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US2411647A
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US2412412A
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US2418494A
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US2523723A
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US2531263A
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US2634000A
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US2583557A
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US2498161A
Cited
US2635771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |