US3010643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial flow compressors
Assignee: Bristol Siddeley Engines Ltd
•
Filing: 1956-12-10
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Granted: 1961-11-28
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Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Ricketts Charles Pe Langworthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:16
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/321; F01; F01D; F01D5/00; F01D5/02; F01D5/06; F01D5/066; F04D19/00; F04D19/02; F04D29/60; F04D29/64; F04D29/644
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1003321A
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US1008531A
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US2528635A
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US2610786A
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US2583875A
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US2650017A
Cited
US2639885A
Cited
US2742224A
Cited
FR1057171A
Cited
US2720356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |