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US3501384A
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Low pressure degassing of feed water in multi-stage flash evaporators
Assignee: Applied Research & Eng Ltd
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Filing: 1966-12-15
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Granted: 1970-03-17
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Expires: 1986-12-15
Abstract
No abstract record available.
Inventors
- 👤 Roy Starmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:28
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/06; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y10; Y10S; Y10S159/00; Y10S159/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2759882A
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US3105020A
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US3119752A
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US3218241A
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US3257290A
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US3259552A
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US3344041A
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US3351120A
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US3300392A
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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) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |