US3733397A
Expired / Lapsed
US
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Method for the x-ray visualization of body cavities and a preparation for carrying out the method
Assignee: Pfizer Health AB
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Filing: 1969-10-27
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Granted: 1973-05-15
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Expires: 1989-10-27
Abstract
Abstract METHOD FOR THE X-RAY VISULIZATION OF BODY CAVITIES WHICH COMPRISES ADMINISTERING TO THE BODY OF THE TEST OBJECT A PREPARATION WHICH CONTAINS A MEMBER SELECTED FROM THE GROUP OF POLYMERS BEING BUILT UP OF ALTERNATING 2,4,6-TRIIODOBENZOIC ACID DERIVATIVE GROUPS AND INTERMEDIATE ALIPHATIC HYDROXYL GROUP-CONTAINING BRIDGES, AND PHYSIOLOGICAL ACCEPTABLE SALTS THEREOF, AND THE PREPARATIONS SUITABLE FOR CARRYING OUT THE METHOD.
Inventors
- 👤 L Bjoerk
- 👤 U Erikson
- 👤 K Granath
- 👤 B Ingelman
- 👤 B Lindberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:42
CPC Classifications
A; A61; A61K; A61K49/00; A61K49/04; A61K49/0433; A61K49/0442; C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/52; C08G73/00; C08G73/02; C08G73/026; C08G73/0266; C08G73/028
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |