US3363664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scheme of salt manufacture
Assignee: Individual
•
Filing: 1964-11-04
•
Granted: 1968-01-16
•
Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 Juan T Villanueva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:12
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/04; C01D3/06; F; F24; F24T; F24T10/00; F24T10/10; F24T10/30; Y; Y02; Y02E; Y02E10/00; Y02E10/10; Y10; Y10S; Y10S159/00; Y10S159/32; Y10S159/902; Y10S203/00; Y10S203/11; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF EXTRACTING A SOLID INGREDIENT FROM A SOLUTION CONTAINING A LIQUID SOLVENT AND HAVING THE SOLID INGREDIENT DISSOLVED THEREIN, COMPRISING THE STEPS OF CONTIONUOUSLY CIRCULATING A HEATING FLUID INITIALLY THROUGH A GEOTHERMAL HEATING STATION FOR RAISING THE TEMPERATURE OF SAID FLUID, AND SUBSEQUENTLY IN HEAT-EXCHANGING RELATIONSHIP THROUGH A BODY OF THE SOLUTION FOR RAISING THE TEMPERATURE OF SUCH SOLUTION TO A PREDETERMINED LEVEL; REMOVING HEATED SOLUTION FROM THE BODY OF SOLUTION AND CONTINUOUSLY PASSING IT THROUGH AN EVAPORATIVE COOLING ZONE; CONTACTING THE HEATED SOLUTION IN SUCH ZONE WITH A
Claim 2
Independent Claim
91 words
A METHOD OF EXTRACTING A SOLID INGREDIENT FROM A SOLUTION CONTAINING A LIQUID SOLVENT AND HAVING THE SOLID INGREDIENT DISSOLVED THEREIN, COMPRISING THE STEPS OF CONTIONUOUSLY CIRCULATING A HEATING FLUID INITIALLY THROUGH A GEOTHERMAL HEATING STATION FOR RAISING THE TEMPERATURE OF SAID FLUID, AND SUBSEQUENTLY IN HEAT-EXCHANGING RELATIONSHIP THROUGH A BODY OF THE SOLUTION FOR RAISING THE TEMPERATURE OF SUCH SOLUTION TO A PREDETERMINED LEVEL; REMOVING HEATED SOLUTION FROM THE BODY OF SOLUTION AND CONTINUOUSLY PASSING IT THROUGH AN EVAPORATIVE COOLING ZONE; CONTACTING THE HEATED SOLUTION IN SUCH ZONE WITH A
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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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |