US2697587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled temperature fan cooled heat exchanger
Assignee: Fluor Corp
•
Filing: 1951-04-16
•
Granted: 1954-12-21
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Expires: 1971-04-16
Abstract
No abstract record available.
Inventors
- 👤 Conison Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:23
CPC Classifications
F; F28; F28F; F28F27/00; Y; Y10; Y10S; Y10S165/00; Y10S165/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB363370A
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US2286538A
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US2237304A
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US2313439A
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US2297970A
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US2458683A
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US2480120A
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US2518760A
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US2488636A
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US2548324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |