Patent US3454470A successfully refreshed from Google Patents.
US3454470A
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US
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Distillation of liquids using semi-porous and non-porous conduits in vacuum pressure container
Assignee: Individual
•
Filing: 1967-05-15
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Granted: 1969-07-08
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Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 Louis Joseph Guarino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:08
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/06; B01D63/067; B01D61/00; B01D61/36; B01D61/364; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; Y; Y10; Y10S; Y10S159/00; Y10S159/09; Y10S159/17; Y10S159/27; Y10S203/00; Y10S203/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2386826A
Cited
US3131143A
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US3161574A
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US3060119A
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US3129145A
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US3303105A
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US3405058A
Cited
US3340186A
Cited
US3361645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |