Patent US2762148A successfully refreshed from Google Patents.
Patent US2705407A successfully refreshed from Google Patents.
US2705407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sea water fractionation
Assignee: Individual
•
Filing: 1950-02-10
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Granted: 1955-04-05
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Expires: 1970-02-10
Abstract
No abstract record available.
Inventors
- 👤 John O Colonna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:27
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/22; B; B01; B01D; B01D9/00; B01D9/02; B01D9/04; C02F2103/00; C02F2103/08; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y10; Y10S; Y10S203/00; Y10S203/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE METHOD OF CONTINUOUSLY SEPARATING AN ORIGINAL HEAVIER THAN THE ORIGINAL SOLUTION AND A CRYSTALLINE FRACHEAVIER THAN THE ORIGINAL SOLUTION AND A CRYSTALLINE FRACTION LESS CONCENTRATED AND LIGHTER THAN THE ORIGINAL SOLUTION, SAID METHOD COMPRISING THE STEPS OF WITHDRAWING HEAT FROM THE EXTERIOR OF SAID SOLUTION UNTIL SAID CRYSTALLINE FRACTION FORMS THEREIN WHILE SIMULTANEOUSLY CENTRIFUGING SAID SOLUTION BY ROTATION IT ABOUT A VERTICAL AXIS, THEREBY PREVENTING SAID LIGHTER CRYSTALLINE FRACTION FORM MAINTAINING A POSITION FURTHER FROM SAID AXIS THAN SAID HEAVIER LIQUID FRACTION, ADDITIONAL SOLUTION BEING CONTINUOUSLY ADDED NEAR THE BOTTOM OF SAID AXIS, AND SAID CONCENTRATED LIQUID FRACTION AND SAID CRYSTALLINE FRACTION BEING CONTINUOUSLY THROWN OFF ALONG SEPARATE PATHS AT THE UPPER END OF SAID AXIS.
Claim 2
Independent Claim
117 words
THE METHOD OF CONTINUOUSLY SEPARATING AN ORIGINAL HEAVIER THAN THE ORIGINAL SOLUTION AND A CRYSTALLINE FRACHEAVIER THAN THE ORIGINAL SOLUTION AND A CRYSTALLINE FRACTION LESS CONCENTRATED AND LIGHTER THAN THE ORIGINAL SOLUTION, SAID METHOD COMPRISING THE STEPS OF WITHDRAWING HEAT FROM THE EXTERIOR OF SAID SOLUTION UNTIL SAID CRYSTALLINE FRACTION FORMS THEREIN WHILE SIMULTANEOUSLY CENTRIFUGING SAID SOLUTION BY ROTATION IT ABOUT A VERTICAL AXIS, THEREBY PREVENTING SAID LIGHTER CRYSTALLINE FRACTION FORM MAINTAINING A POSITION FURTHER FROM SAID AXIS THAN SAID HEAVIER LIQUID FRACTION, ADDITIONAL SOLUTION BEING CONTINUOUSLY ADDED NEAR THE BOTTOM OF SAID AXIS, AND SAID CONCENTRATED LIQUID FRACTION AND SAID CRYSTALLINE FRACTION BEING CONTINUOUSLY THROWN OFF ALONG SEPARATE PATHS AT THE UPPER END OF SAID AXIS.
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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) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |