Patent US2997283A successfully refreshed from Google Patents.
US2997283A
Expired / Lapsed
US
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Condensation of condensable boundary layer fluid
Assignee: Westinghouse Electric Corp
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Filing: 1957-01-22
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Granted: 1961-08-22
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Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Ciifford E Seglem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:10
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/30; F01D25/305; Y; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US873041A
Cited
US984435A
Cited
US1352438A
Cited
CH97933A
Cited
GB212259A
Cited
US2312113A
Cited
US2641440A
Cited
US2663547A
Cited
US2708564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |