US3702866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel 3,5 - bis-acylamido - 2,4,6-triiodobenzoic acids and 5-acylamido-2,4,6-triiodoisophthalamic acids
Assignee: Norgas AS
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Filing: 1969-06-09
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Granted: 1972-11-14
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Expires: 1989-06-09
Abstract
Abstract NOVEL 3,5-BIS-ACYLAMIDO-2,4,6-TRIIODOBENZOIC ACIDS AND 5-ACYLAMIDO-2,4,6-TRIIODO-ISOPHTHALAMIC ACIDS. THE COMPOUNDS OF THE PRESENT INVENTION ARE USEFUL AS X-RAY CONTRAST AGENTS.
Inventors
- 👤 Sigbjorn Salvesen
- 👤 Leif Gunnar Haugen
- 👤 Johan Haavaldsen
- 👤 Vegard Nordal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:11
CPC Classifications
A; A61; A61K; A61K49/00; A61K49/04; A61K49/0433
Claims Analysis
Total Claims: 0
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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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |