Patent US3433717A successfully refreshed from Google Patents.
US3433717A
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US
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Multistage flash still with vapor compression plant
Assignee: Aqua Chem Inc
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Filing: 1965-03-01
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Granted: 1969-03-18
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Loebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:08
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/06; B01D3/065; B01D1/00; B01D1/28; B24; B24B; B24B5/00; B24B5/313; B24B5/32; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; Y; Y10; Y10S; Y10S203/00; Y10S203/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2759882A
Cited
US2908618A
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US3105020A
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US3119752A
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US3218241A
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US3152053A
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US3257290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |