US2768962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of 2-cyanoethylated n-substituted imines
Assignee: Bayer AG
•
Filing: 1954-08-10
•
Granted: 1956-10-30
•
Expires: 1974-08-10
Abstract
No abstract record available.
Inventors
- 👤 Krimm Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:26
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDOIMINES AND KETOIMINES, AN A-CARBON ATOM THEREOF HAVING AT LEAST ONE B-CYANOETHYL GROUP SUBSTITUENT, THE REMAINING VALENCIES OF EACH A-CARBON ATOM BEING SATISFIED BY A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, MONO-VALENT HYDROCARBON RADICALS, AND B-CYANOETHYL GROUPS, AND A MONO-VALENT HYDROCARBON SUBSTITUENT SATISFYING A NITROGEN ATOM VALENCY OF THE IMINE GROUP.
Claim 2
Dependent Claim
61 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDOIMINES AND KETOIMINES, AN A-CARBON ATOM THEREOF HAVING AT LEAST ONE B-CYANOETHYL GROUP SUBSTITUENT, THE REMAINING VALENCIES OF EACH A-CARBON ATOM BEING SATISFIED BY A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, MONO-VALENT HYDROCARBON RADICALS, AND B-CYANOETHYL GROUPS, AND A MONO-VALENT HYDROCARBON SUBSTITUENT SATISFYING A NITROGEN ATOM VALENCY OF THE IMINE GROUP.
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |