US3637685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triamino-s-triazines
Assignee: GAETANO F D ALELIO
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Filing: 1967-05-15
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Granted: 1972-01-25
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Expires: 1987-05-15
Abstract
Abstract THE COMPOSITIONS DISLOSED HEREIN COMPRISE DERIVATIVES OF SYMMETRICAL TRIAZINES IN WHICH AT LEAST ONE OF THE DERIVATIVE GROUPS HAS A RADICAL OF THE FORMULA -CHR4COOM WHEREIN M IS HYDROGEN, A QUATERNARY AMMONIUM GROUP OR METAL, AND R4 REPRESENTS HYDROGEN, PHYENYL, CYCLOHEPTYL, CYCLOHEXYL OR AN ALKYL GROUP OF 1-6 CARBON ATOMS. THESE COMPOUNDS ARE USEFUL FOR CHELATING OR COORDINATING METAL IONS AND RECOVERY OF THE SAME FROM SOLUTIONS.
Inventors
- 👤 Gaetano F D Alelio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:22
CPC Classifications
C; C08; C08G; C08G85/00; B; B01; B01J; B01J45/00; C08F; C08F26/00; C08F26/06; C08F8/00; C08F8/30; C08G12/00; C08G12/02; C08G12/26; C08G12/34; C08G63/00; C08G63/68; C08G73/00; C08G73/02; C08G73/024; C08G73/06; C08G73/08
Claims Analysis
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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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |