US2567867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for desulfurizing of searles lake brine
Assignee: West End Chemical Co
•
Filing: 1946-10-04
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Granted: 1951-09-11
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Expires: 1966-10-04
Abstract
No abstract record available.
Inventors
- 👤 Lynn A Blackmun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:53
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/08; C01B35/10; C01B35/06; C01B35/12; C01D; C01D7/00; C01D7/18; C01D7/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR TREATMENT OF RAW SEARLES LAKE BRINE AS DERIVED FROM THE LAKE AND CONTAINING AT LEAST 0.02% METALLIC SULFIDES AND HAVING A PH OF ABOUT 10 CONSISTING IN CARBONATING THE RAW LAKE BRINE TO LOWER THE PH THEREOF TO ABOUT 9. SAID CARBONATING BEING INSUFFICIENT TO PRODUCE A PRECIPITATION OF SODIUM BICARBONATE IN THE BRINE, AND THEN PASSING A GAS SELECTED FROM THE GROUP CONSISTING OF CARBON DIOXIDE AND AIR THROUGH THE BRINE TO SEEEP OUT HYDROGEN SULFIDE SUBSTANTIALLY COMPLETELY.
Claim 2
Dependent Claim
82 words
A PROCESS FOR TREATMENT OF RAW SEARLES LAKE BRINE AS DERIVED FROM THE LAKE AND CONTAINING AT LEAST 0.02% METALLIC SULFIDES AND HAVING A PH OF ABOUT 10 CONSISTING IN CARBONATING THE RAW LAKE BRINE TO LOWER THE PH THEREOF TO ABOUT 9. SAID CARBONATING BEING INSUFFICIENT TO PRODUCE A PRECIPITATION OF SODIUM BICARBONATE IN THE BRINE, AND THEN PASSING A GAS SELECTED FROM THE GROUP CONSISTING OF CARBON DIOXIDE AND AIR THROUGH THE BRINE TO SEEEP OUT HYDROGEN SULFIDE SUBSTANTIALLY COMPLETELY.
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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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |