US3850918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-amino-4,6-disalicyloyl-hydrazino-s-triazines
Assignee: Novartis Corp
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Filing: 1971-06-07
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Granted: 1974-11-26
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Expires: 1991-06-07
Abstract
Abstract 1. A COMPOUND OF THE FORMULA 2-(R2-N(-R3)-),4,6-DI(HO-(1,2-PHENYLENE(A))-CO-NH-NH-)- S-TRIAZINE WHEREIN R2 AND R3, INDEPENDENTLY OF ONE ANOTHER, IS HYDROGEN, ALKYL OF 1 TO 18 CARBON ATOMS, CYCLOHEXYL, BENZYL, UNSUBSTITUTED PHENYL OR PHENYL SUBSTITUTED BY 1 OR 2 ALKYL GROUPS OF 1 TO 8 CARBON ATOMS, EACH, OR R2 AND R3 CONJOINTLY, WITH THE INCLUSION OF THE NITROGEN ATOM, IS PYRROLIDINO, PIPERIDINO, MORPHOLINO OR HEXAMETHYLENEIMINO RADICALS, AND THE RINGS A ARE UNSUBSTITUTED OR ARE SUBSTITUTED BY 1 OR 2 ALKYL GROUPS OF 1 TO 8 CARBON ATOMS EACH, AN ALKOXY GROUP OF 1 TO 18 CARBON ATOMS OR 1 TO 3 CHLORINE ATOMS.
Inventors
- 👤 H Muller
- 👤 S Rosenberger
- 👤 K Schwarzenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:52
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54; C07D251/66; C07D251/14; C07D251/16; C07D251/18; C07D251/48; C07D251/50; C07D251/52; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |