US2939875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of 2-chloroethyl thiocyanate
Assignee: Dow Chemical Co
•
Filing: 1958-03-10
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Granted: 1960-06-07
•
Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Floria Vernon Deane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:15
CPC Classifications
C; C07; C07C; C07C331/00; C07C331/02; C07C331/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD FOR MAKING 2-CHLOROETHYL THIOCYANATE, WHICH METHOD COMPRISES REACTING AT A TEMPERATURE BETWEEN 80* AND 130*C., A MIXTURE OF BETWEEN 1/4 AND 3 MOLAR PROPORTIONS OF A THICYANATE OF THE GROUP CONSISTING OF AMMONIUM AND ALKALI METAL THIOCYANATES AND ONE MOLE OF BIS-(2-CHLOROETHYL) SULFATE AND RECOVERING 2CHLOROETHYL THIOCYANATE PRODUCT.
Claim 2
Independent Claim
50 words
A METHOD FOR MAKING 2-CHLOROETHYL THIOCYANATE, WHICH METHOD COMPRISES REACTING AT A TEMPERATURE BETWEEN 80* AND 130*C., A MIXTURE OF BETWEEN 1/4 AND 3 MOLAR PROPORTIONS OF A THICYANATE OF THE GROUP CONSISTING OF AMMONIUM AND ALKALI METAL THIOCYANATES AND ONE MOLE OF BIS-(2-CHLOROETHYL) SULFATE AND RECOVERING 2CHLOROETHYL THIOCYANATE PRODUCT.
References Cited (Backward Citations)
US1992533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |