US2745868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of trichloroacetonitrile
Assignee: Evonik Operations GmbH
•
Filing: 1954-02-08
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Granted: 1956-05-15
•
Expires: 1974-02-08
Abstract
No abstract record available.
Inventors
- 👤 Kabisch Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:59
CPC Classifications
C; C07; C07C; C07C255/00; C07C255/01; C07C255/10; C07C255/02; C07C255/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PROCESS FOR THE PRODUCTION OF TRICHLORO-ACETONITRILE WHICH COMPRISES CONTACTING AN ACETONITRILE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETONITRILE AND MONOCHLORO-ACETONITRILE IN ADMIXTURE WITH HYDROGEN CHLORIDE WITH CHLORINE AT TEMPERATURES BETWEEN 50 AND 80* C.
Claim 2
Dependent Claim
36 words
A PROCESS FOR THE PRODUCTION OF TRICHLORO-ACETONITRILE WHICH COMPRISES CONTACTING AN ACETONITRILE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETONITRILE AND MONOCHLORO-ACETONITRILE IN ADMIXTURE WITH HYDROGEN CHLORIDE WITH CHLORINE AT TEMPERATURES BETWEEN 50 AND 80* C.
References Cited (Backward Citations)
US2231838A
Cited
US2429031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |