Patent US2594149A successfully refreshed from Google Patents.
US2594149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur recovery
Assignee: GREAT LAKES CARBON Corp
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Filing: 1948-03-05
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Granted: 1952-04-22
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Expires: 1968-03-05
Abstract
No abstract record available.
Inventors
- 👤 Bernard W Gamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:34
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A PROCESS FOR PRODUCING ELEMENTAL SULFUR BY THE NON-CATALYTIC COMBUSTION OF HYDROGEN SULFIDE, WHICH COMPRISES FORMING A MIXTURE OF HYDROGEN SULFIDE AND AN OXYGEN-CONTAINING GAS HAVING ABOUT THE STOICHIOMETRICAL AMOUNT OF OXYGEN FOR THE REACTION
Claim 2
Dependent Claim
35 words
A PROCESS FOR PRODUCING ELEMENTAL SULFUR BY THE NON-CATALYTIC COMBUSTION OF HYDROGEN SULFIDE, WHICH COMPRISES FORMING A MIXTURE OF HYDROGEN SULFIDE AND AN OXYGEN-CONTAINING GAS HAVING ABOUT THE STOICHIOMETRICAL AMOUNT OF OXYGEN FOR THE REACTION
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) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |