Patent US3050370A successfully refreshed from Google Patents.
US3050370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of sulfur
Assignee: Universal Oil Products Co
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Filing: 1960-07-05
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Granted: 1962-08-21
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Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Urban Peter
- 👤 Lester G Massey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:30
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/05; C10K1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS FOR THE PRODUCTION OF SULFUR WHICH COMPRISES ABSROBING SULFUR DIOXIDE AND HYDROGEN SULFIDE IN SA SOLVENT COMPRISING AN ESTER, AND HAVING FROM ABOUT 0.5% TO ABOUT 40% BY VOLUME OF WATER DISSOLVED THEREIN, REACTING THE SULFUR DIOXIDE AND HYDROGEN SULFIDE IN CONTACT WITH SAID ESTER, THEREBY FORMING SULFUR, AND SEPARATING THE SULFUR FROM SAID SOLVENT.
Claim 2
Dependent Claim
57 words
A PROCESS FOR THE PRODUCTION OF SULFUR WHICH COMPRISES ABSROBING SULFUR DIOXIDE AND HYDROGEN SULFIDE IN SA SOLVENT COMPRISING AN ESTER, AND HAVING FROM ABOUT 0.5% TO ABOUT 40% BY VOLUME OF WATER DISSOLVED THEREIN, REACTING THE SULFUR DIOXIDE AND HYDROGEN SULFIDE IN CONTACT WITH SAID ESTER, THEREBY FORMING SULFUR, AND SEPARATING THE SULFUR FROM SAID SOLVENT.
References Cited (Backward Citations)
GB734577A
Cited
US2881047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |