US3479349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysulfonated bis-s-triazinylamino-stilbene-2,2'-disulfonic acids
Assignee: Novartis Corp
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Filing: 1967-08-03
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Granted: 1969-11-18
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Expires: 1987-08-03
Abstract
No abstract record available.
Inventors
- 👤 Robert Corwin Allison
- 👤 Franz Fischer
- 👤 Heinrich Hausermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:54
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/30; C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54; C07D251/68
Claims Analysis
Total Claims: 0
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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) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |