US2992896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of carbonyl sulfide
Assignee: Monsanto Chemicals Ltd
•
Filing: 1959-01-02
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Granted: 1961-07-18
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Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Applegath Fred
- 👤 Raymond A Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:03
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A PROCESS FOR PREPARING CARBONYL SULFIDE WHICH COMPRISES REACTING CARBON MONOXIDE AND SULFUR IN AN ALIPHATIC ALCOHOL HAVING DISPERSED THEREIN A TERTIARY ALKYLAMINE AND H2S AT A TEMPERATURE RANGING FROM ABOUT 25*C. TO ABOUT 300*C.
Claim 2
Dependent Claim
35 words
A PROCESS FOR PREPARING CARBONYL SULFIDE WHICH COMPRISES REACTING CARBON MONOXIDE AND SULFUR IN AN ALIPHATIC ALCOHOL HAVING DISPERSED THEREIN A TERTIARY ALKYLAMINE AND H2S AT A TEMPERATURE RANGING FROM ABOUT 25*C. TO ABOUT 300*C.
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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |