US3033757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray contrast agents
Assignee: Mallinckrodt Chemical Works
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Filing: 1959-04-08
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Granted: 1962-05-08
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Expires: 1979-04-08
Abstract
No abstract record available.
Inventors
- 👤 Floyd P Hallett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:30
CPC Classifications
A; A61; A61K; A61K49/00; A61K49/04; A61K49/0433; A61K49/0447; A61K49/0452
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN X-RAY CONTRAST MEDIUM COMPRISING AN AQUEOUS SOLUTION OF THE SODIUM SALT OF 3,5-BISACETAMIDO-2,4,6-TRAIIODOBENZOIC ACID AND THE SODIUM SALT OF 3,5-BISPROPIONAMIDO-2,4,6-TRIIODOBENZOIC ACID, SAID SOLUTION CONTAINING, IN EACH 100 ML., NOT MORE THAN 85.1 GRAMS OF SOLUTE AND NOT SUBSTANTIALLY LESS THAN 40 GRAMS OF IODINE IN ORGANIC COMBINATION, THE RATIO, BY WEIGHT, OF THE SODIUM SALT OF 3,5-BISACETAMIDO-2,4,6-TRIIODOBENZOIC ACID BEING SALT OF 3,5-BISPROPIONAMIDO-2,4,6-TRIIODOBENZOIC ACID BEING NOT SUBSTANTIALLY LESS THAN 0.55 AND NOT SUBSTANTIALLY GREATER THAN 8.1, THE VISCOSITY OF SAID SOLUTION AT 37.5*C. BEING NOT SUBSTANTIALLY GREATER THAN THAT DEFINED BY THE EXPRESSION
Claim 2
Dependent Claim
93 words
AN X-RAY CONTRAST MEDIUM COMPRISING AN AQUEOUS SOLUTION OF THE SODIUM SALT OF 3,5-BISACETAMIDO-2,4,6-TRAIIODOBENZOIC ACID AND THE SODIUM SALT OF 3,5-BISPROPIONAMIDO-2,4,6-TRIIODOBENZOIC ACID, SAID SOLUTION CONTAINING, IN EACH 100 ML., NOT MORE THAN 85.1 GRAMS OF SOLUTE AND NOT SUBSTANTIALLY LESS THAN 40 GRAMS OF IODINE IN ORGANIC COMBINATION, THE RATIO, BY WEIGHT, OF THE SODIUM SALT OF 3,5-BISACETAMIDO-2,4,6-TRIIODOBENZOIC ACID BEING SALT OF 3,5-BISPROPIONAMIDO-2,4,6-TRIIODOBENZOIC ACID BEING NOT SUBSTANTIALLY LESS THAN 0.55 AND NOT SUBSTANTIALLY GREATER THAN 8.1, THE VISCOSITY OF SAID SOLUTION AT 37.5*C. BEING NOT SUBSTANTIALLY GREATER THAN THAT DEFINED BY THE EXPRESSION
References Cited (Backward Citations)
GB764104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |