US2979384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of hydrogen and sulfur
Assignee: Parsons Government Services Inc
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Filing: 1958-12-22
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Granted: 1961-04-11
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Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Weiner
- 👤 Leggett Charles William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/06; C01B3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A PROCESS FOR PRODUCING HYDROGEN AND SULFUR FROM HYDROGEN SULFIDE WHICH PROCESS COMPRISES THE STEPS OF PASSING GASEOUS HYDROGEN SULFIDE IN CONTACT WITH A LOWER SULFIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL AND COBALT TO PRODUCE HYDROGEN AND A HIGHER SULFIDE OF SAID METAL; SEPARATING THE HYDROGEN FROM THE HIGHER SULFIDE OF THE METAL; HEATING THE HIGHER SULFIDE OF SAID METAL TO REGENERATE THE LOWER SULFIDE OF SAID METAL AND TO PRODUCE VAPOROUS SULFUR; SEPARATING THE VAPOROUS SULFUR FROM THE LOWER SULFIDE OF THE METAL; AND CYCLICALLY REPEATING THE STEPS OF PASSING GASEOUS HYDROGEN SULFIDE IN CONTACT WITH THE REGENERATED LOWER SULFIDE OF SAID METAL AND REGENERATING THE LOWER SULFIDE OF SAID METAL BY HEATING THE HIGHER SULFIDE OF SAID METAL.
Claim 2
Dependent Claim
126 words
A PROCESS FOR PRODUCING HYDROGEN AND SULFUR FROM HYDROGEN SULFIDE WHICH PROCESS COMPRISES THE STEPS OF PASSING GASEOUS HYDROGEN SULFIDE IN CONTACT WITH A LOWER SULFIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL AND COBALT TO PRODUCE HYDROGEN AND A HIGHER SULFIDE OF SAID METAL; SEPARATING THE HYDROGEN FROM THE HIGHER SULFIDE OF THE METAL; HEATING THE HIGHER SULFIDE OF SAID METAL TO REGENERATE THE LOWER SULFIDE OF SAID METAL AND TO PRODUCE VAPOROUS SULFUR; SEPARATING THE VAPOROUS SULFUR FROM THE LOWER SULFIDE OF THE METAL; AND CYCLICALLY REPEATING THE STEPS OF PASSING GASEOUS HYDROGEN SULFIDE IN CONTACT WITH THE REGENERATED LOWER SULFIDE OF SAID METAL AND REGENERATING THE LOWER SULFIDE OF SAID METAL BY HEATING THE HIGHER SULFIDE OF SAID METAL.
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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |