US2668596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anthcing and intake means for turbine-propeller units
Assignee: Rotol Ltd
•
Filing: 1948-06-29
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Granted: 1954-02-09
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Expires: 1968-06-29
Abstract
No abstract record available.
Inventors
- 👤 Elliott Albert George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:03
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/047; B; B64; B64D; B64D15/00; B64D15/02; B64D15/04; B64D33/00; B64D33/02; B64D2033/0233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2440115A
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FR837466A
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FR871408A
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US2404275A
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US2507044A
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US2446663A
Cited
US2503451A
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US2559851A
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US2435990A
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US2529103A
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US2482720A
Cited
US2474068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |