US2630433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formoguanamines and their
Assignee: —
•
Filing: —
•
Granted: 1953-03-03
•
Expires: 1970-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:57
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/48; C07D251/14; C07D251/16; C07D251/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE METHOD THAT COMPRISES SUBJECTING A MEMBER OF THE GROUP CONSISTING OF DICYANOGUANIDINE, MONO- AND DI-ALIPHATIC DICYANOGUANIDINES, MONO- AND DI-CYCLOALIPHATIC DICYANOGUANIDINES, MONO- AND DI-ARALKYL DICYANOGUANIDINES, THE RESPECTIVE DICYANOGUANIDINE SUBSTITUTENT BEING A HYDROCARBON, TO THE REACTION OF AT LEAST TWO STOICHIMETRIC EQUIVALENTS OF HYDRIODIC ACID AT A TEMPERATURE WITHIN THE RANGE OF 80-100* C. TO FROM THE CORRESPONDING FORMOGUANAMINE OF THE FORMULA
Claim 2
Independent Claim
61 words
THE METHOD THAT COMPRISES SUBJECTING A MEMBER OF THE GROUP CONSISTING OF DICYANOGUANIDINE, MONO- AND DI-ALIPHATIC DICYANOGUANIDINES, MONO- AND DI-CYCLOALIPHATIC DICYANOGUANIDINES, MONO- AND DI-ARALKYL DICYANOGUANIDINES, THE RESPECTIVE DICYANOGUANIDINE SUBSTITUTENT BEING A HYDROCARBON, TO THE REACTION OF AT LEAST TWO STOICHIMETRIC EQUIVALENTS OF HYDRIODIC ACID AT A TEMPERATURE WITHIN THE RANGE OF 80-100* C. TO FROM THE CORRESPONDING FORMOGUANAMINE OF THE FORMULA
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) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |