Patent US3276996A successfully refreshed from Google Patents.
US3276996A
Expired / Lapsed
US
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Separating water from saline solutions
Assignee: Individual
•
Filing: 1963-07-15
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Granted: 1966-10-04
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Expires: 1983-07-15
Abstract
No abstract record available.
Inventors
- 👤 Lazare Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:51
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/36; B01D61/365; B01D61/3651; B01D63/00; B01D63/06; B01D63/069; B01D2311/00; B01D2311/06; B01D2323/00; B01D2323/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN SEPARATING WATER OF REDUCED ION CONTENT FROM AN AQUEOUS SOLUTION CONTAINING ELECTROLYTES, BY THERMAL DIFFUSION THROUGH A FIXED MEMBRANE, THE PROCESS WHICH COMPRISES MAINTAINING SAID SOLUTION IN CONTACT WITH THE FACE OF A MEMBRANE THAT IS ABSORPTIVE OF WATER, INSOLUBLE THEREIN, AND-ELECTROLYTE EXCLUDING, SUPPLYING UNSUBSTANTIALLY PURE WATER TO THE BACK OF THE MEMBRANE MAINTAINING SAID WATER AT A TEMPERATURE AT LEAST 5*C. HIGHER THAN THE
Claim 2
Dependent Claim
66 words
IN SEPARATING WATER OF REDUCED ION CONTENT FROM AN AQUEOUS SOLUTION CONTAINING ELECTROLYTES, BY THERMAL DIFFUSION THROUGH A FIXED MEMBRANE, THE PROCESS WHICH COMPRISES MAINTAINING SAID SOLUTION IN CONTACT WITH THE FACE OF A MEMBRANE THAT IS ABSORPTIVE OF WATER, INSOLUBLE THEREIN, AND-ELECTROLYTE EXCLUDING, SUPPLYING UNSUBSTANTIALLY PURE WATER TO THE BACK OF THE MEMBRANE MAINTAINING SAID WATER AT A TEMPERATURE AT LEAST 5*C. HIGHER THAN THE
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |