US3360436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioopaque compounds and methods of preparing the same
Assignee: Merck Eprova AG
•
Filing: 1963-11-12
•
Granted: 1967-12-26
•
Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Felder Ernst
- 👤 Pitre Davide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:46
CPC Classifications
A; A61; A61K; A61K49/00; A61K49/04; A61K49/0433; A61K49/0447; A61K49/0452; A61K49/0461; C; C07; C07C; C07C233/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A RADIOOPAQUE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
6 words
A RADIOOPAQUE COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2735865A
Cited
US1868602A
Cited
US1984404A
Cited
US2824127A
Cited
US3014063A
Cited
US3178473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |