US2728638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of carbonyl sulfide
Assignee: Olin Corp
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Filing: 1952-04-24
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Granted: 1955-12-27
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Expires: 1972-04-24
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Morningstar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:49
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN THE MANUFACTURE OF CARBONYL SULFIDE FROM SULFUR DIOXIDE, CARBON AND CARBON MONOXIDE THE PROCESS WHICH COMPRISES PASSING SULFUR DIOXIDE AND CARBON MONOXIDE SIMULTANEOULSY IN A RATIO OF SULFUR DIOXIDE TO CARBON MONOXIDE BETWEEN 0.5:1 AND 2:1 THROUGH A BODY OF PARTICLEFORM COKE MAINTAINED IN A REACTION ZONE AT A TEMPERATURE FROM ABOUT 1400* TO 2000* F. WHILE CONTROLLING THE SPACE VELOCITY BETWEEN ABOUT 100 MIN. -1 AND 3 MIN. -1.
Claim 2
Dependent Claim
71 words
IN THE MANUFACTURE OF CARBONYL SULFIDE FROM SULFUR DIOXIDE, CARBON AND CARBON MONOXIDE THE PROCESS WHICH COMPRISES PASSING SULFUR DIOXIDE AND CARBON MONOXIDE SIMULTANEOULSY IN A RATIO OF SULFUR DIOXIDE TO CARBON MONOXIDE BETWEEN 0.5:1 AND 2:1 THROUGH A BODY OF PARTICLEFORM COKE MAINTAINED IN A REACTION ZONE AT A TEMPERATURE FROM ABOUT 1400* TO 2000* F. WHILE CONTROLLING THE SPACE VELOCITY BETWEEN ABOUT 100 MIN. -1 AND 3 MIN. -1.
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |