US3077499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of bis(trifluoromethyl)amine
Assignee: EIDP Inc
•
Filing: 1959-01-27
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Granted: 1963-02-12
•
Expires: 1979-01-27
Abstract
No abstract record available.
Inventors
- 👤 Tullock Charles William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:06
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/16; C07C209/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
IN A PROCESS OF PREPARING BIS(TRIFLUOROMETHYL)AMINE, THE STEP OF HEATING A REACTION MIXTURE INITIALLY CONSISTING OF HYDROGEN FLUORIDE AND A CYANOGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYANOGEN, A CYANOGEN HALIDE AND A CYANURIC HALIDE AT A TEMPERATURE OF AT LEAST 125*C. UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS.
Claim 2
Dependent Claim
47 words
IN A PROCESS OF PREPARING BIS(TRIFLUOROMETHYL)AMINE, THE STEP OF HEATING A REACTION MIXTURE INITIALLY CONSISTING OF HYDROGEN FLUORIDE AND A CYANOGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYANOGEN, A CYANOGEN HALIDE AND A CYANURIC HALIDE AT A TEMPERATURE OF AT LEAST 125*C. UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |