US2933238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial flow compressors incorporating boundary layer control
Assignee: Individual
•
Filing: 1954-06-24
•
Granted: 1960-04-19
•
Expires: 1974-06-24
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:29
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/321; F04D27/00; F04D27/02; F04D27/0207; F04D27/0215; F04D29/66; F04D29/68; F04D29/681; F04D29/682; F04D29/684; Y; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2136403A
Cited
US2314058A
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US2405768A
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US2344835A
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DE904610C
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US2527971A
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US2501614A
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US2656146A
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US2685405A
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US2678537A
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FR1007303A
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US2780435A
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GB758906A
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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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |