Patent US3260631A successfully refreshed from Google Patents.
Patent US3428529A successfully refreshed from Google Patents.
US3428529A
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Solar distillation of foamed saline water to recover fresh water
Assignee: Instituto Nacional de Industria CETME
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Filing: 1966-07-18
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Granted: 1969-02-18
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Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Ricardo Salcedo Gumucio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:47
CPC Classifications
B; B01; B01D; B01D5/00; B01D5/0057; B01D5/006; B01D5/0066; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/14; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/208; Y02A20/212; Y10; Y10S; Y10S159/00; Y10S159/04; Y10S159/902; Y10S159/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US863031A
Cited
US1753429A
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US2027115A
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US2616839A
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US2782162A
Cited
US2981629A
Cited
FR1336794A
Cited
US3282327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |