US2649243A
Expired / Lapsed
US
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Axial flow compressor construction
Assignee: Individual
•
Filing: 1948-08-05
•
Granted: 1953-08-18
•
Expires: 1968-08-05
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:20
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/321; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F04D29/66; F04D29/68; F04D29/681; Y; Y10; Y10S; Y10S415/00; Y10S415/914; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326871A
Cited
US1827316A
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US2234319A
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US2237039A
Cited
US2294586A
Cited
US2397171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |