US3226431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray contrast agent
Assignee: Bracco SpA
•
Filing: 1961-05-17
•
Granted: 1965-12-28
•
Expires: 1981-05-17
Abstract
No abstract record available.
Inventors
- 👤 Felder Ernst
- 👤 Pitre Davide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:47
CPC Classifications
A; A61; A61K; A61K49/00; A61K49/04; A61K49/0433; A61K49/0447; A61K49/0452; A61K49/0495; C; C07; C07C; C07C233/00; C07C233/01; C07C233/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE COMPOUND 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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |