Patent US3702820A successfully refreshed from Google Patents.
US3702820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent extraction into comestible solute
Assignee: Individual
•
Filing: 1970-03-27
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Granted: 1972-11-14
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Expires: 1990-03-27
Abstract
Abstract A PROCESS FOR DESALTING OF SEA WATER BY REGULAR (NATURAL) OSMOSIS OF WATER FROM SEA WATER INTO A MORE CONCENTRATED COMESTIBLE SOLUTION OF A COMESTIBLE FOOD, TO FORM A DILUTED COMESTIBLE SOLUTION, PREFERABLY-BEFORE CONSUMPTION THEREOF-RETAINING SAID DILUTED COMESTIBLE SOLUTION IN A CONSUMPTION VESSEL SUCH AS A CUP, A GLASS, CANTEEN, OR BOWL, OR THE LIKE, FROM WHICH SAID DILUTED SOLUTION IS CONSUMABLE.
Inventors
- 👤 William T Hough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:41
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/44; B; B01; B01D; B01D61/00; B01D61/002; B01D61/0022; B01D61/0023; C02F1/445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |