Patent US2762810A successfully refreshed from Google Patents.
US2762810A
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Process for introducing a tricyanovinyl substituent on the ring of a cyclic amine
Assignee: EIDP Inc
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Filing: 1953-09-28
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Granted: 1956-09-11
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Expires: 1973-09-28
Abstract
No abstract record available.
Inventors
- 👤 Heckert Richard Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:57
CPC Classifications
C; C07; C07C; C07C255/00; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921; Y10S8/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
PROCESS OF PREPARING A C-TRICYANOVINYLAMINE WHICH COMPRISES REACTING TETRACYANOETHYLENE WITH A COMPOUND FROM THE GROUP CONSISTING OF PRIMARY AROMATIC AMINES IN WHICH NEITHER ANNULAR CARBON ADJACENT THE CARBON BONDED TO THE AMINO SUBSTITUENT, IS BONDED TO A MEMBER FROM THE GROUP CONSISTING OF HYDROGEN AND HALOGEN, AND IN WHICH HYDROGEN IS BONDED TO THE ANNULAR CARBON IN THE 4-POSITION; SECONDARY AND TERTIARY AROMATIC AMINES IN WHICH HYDROGEN IS BONDED TO THE ANNULAR CARBON IN THE 4-POSTION; AND HETEROCYCLIC AMINES IN WHICH THE RING IS RESONANCE STABILIZED AND CONTAINS AT LEAST ONE CARBON BONDED TO HYDROGEN AND IN WHICH ONLY TWO BONDS OF THE NITROGEN ARE ATTACHED TO THE RING.
Claim 2
Dependent Claim
109 words
PROCESS OF PREPARING A C-TRICYANOVINYLAMINE WHICH COMPRISES REACTING TETRACYANOETHYLENE WITH A COMPOUND FROM THE GROUP CONSISTING OF PRIMARY AROMATIC AMINES IN WHICH NEITHER ANNULAR CARBON ADJACENT THE CARBON BONDED TO THE AMINO SUBSTITUENT, IS BONDED TO A MEMBER FROM THE GROUP CONSISTING OF HYDROGEN AND HALOGEN, AND IN WHICH HYDROGEN IS BONDED TO THE ANNULAR CARBON IN THE 4-POSITION; SECONDARY AND TERTIARY AROMATIC AMINES IN WHICH HYDROGEN IS BONDED TO THE ANNULAR CARBON IN THE 4-POSTION; AND HETEROCYCLIC AMINES IN WHICH THE RING IS RESONANCE STABILIZED AND CONTAINS AT LEAST ONE CARBON BONDED TO HYDROGEN AND IN WHICH ONLY TWO BONDS OF THE NITROGEN ARE ATTACHED TO THE RING.
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) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |