Patent US3099536A successfully refreshed from Google Patents.
US3099536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the recovery of crystalline sulfur
Assignee: Universal Oil Products Co
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Filing: 1960-07-05
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Granted: 1963-07-30
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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
2026-11-07 21:46
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
A PROCESS FOR THE PRODUCTION OF SULFUR IN A READILY RECOVERABLE CRYSTALLINE STATE WHICH COMPRISES ABSORBING SULFUR DIOXIDE AND HYDROGEN SULFIDE IN A SOLVENT CONSISTING ESSENTIALLY OF A MONOHYDRIC ALCOHOL OF FROM 1 TO 5 CARBON ATOMS PER MOLECULE HAVING FROM ABOUT 10% TO ABOUT 40% BY VOLUME OF WATER DISSOLVED THEREIN, REACTING THE SULFUR DIOXIDE AND HYDROGEN SULFIDE IN CONTACT WITH SAID SOLVENT, THEREBY FORMING SULFUR IN A READILY RECOVERABLE CRYSTALLINE STATE, AND SEPARATING THE SULFUR FROM SAID SOLVENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |