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Patent US3235333A successfully refreshed from Google Patents.
US3235333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing carbonylsulfide
Assignee: Standard Oil Co
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Filing: 1961-03-07
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Granted: 1966-02-15
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Expires: 1981-03-07
Abstract
No abstract record available.
Inventors
- 👤 Edward A Swakon
- 👤 Field Edmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:20
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR THE PREPARATION OF CARBONYL SULFIDE WHICH CONSISTS ESSENTIALLY OF REACTING CARBON MONOXIDE WITH SULFUR IN THE PRESENCE OF A CATALYTIC AMOUNT OF AN ALKALI METAL CARBOXYLATE AT A TEMPERATURE IN THE RANGE OF FROM 50 TO 150* C. AND CARBON MONOXIDE PRESSURE IN THE RANGE OF 200 P.S.I.G. UP TO 5000 P.S.I.G.
Claim 2
Dependent Claim
55 words
A PROCESS FOR THE PREPARATION OF CARBONYL SULFIDE WHICH CONSISTS ESSENTIALLY OF REACTING CARBON MONOXIDE WITH SULFUR IN THE PRESENCE OF A CATALYTIC AMOUNT OF AN ALKALI METAL CARBOXYLATE AT A TEMPERATURE IN THE RANGE OF FROM 50 TO 150* C. AND CARBON MONOXIDE PRESSURE IN THE RANGE OF 200 P.S.I.G. UP TO 5000 P.S.I.G.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |