Patent US2099876A successfully refreshed from Google Patents.
US2996433A
Expired / Lapsed
US
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Radiopaque formulations
Assignee: STWB Inc
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Filing: 1958-09-11
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Granted: 1961-08-15
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Expires: 1978-09-11
Abstract
No abstract record available.
Inventors
- 👤 James O Hoppe
- 👤 Horace P Maietta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:12
CPC Classifications
A; A61; A61K; A61K49/00; A61K49/04; A61K49/0433; A61K49/0447; A61K49/0461; Y; Y10; Y10S; Y10S424/00; Y10S424/90
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A RADIOPAQUE COMPOSITION COMPRISING A SUSPENSION OF FROM ABOUT 50 TO ABOUT 90 WEIGHT PERCENT OF A FINELY DIVIDED, SUBSTANTIALLY INSOLUBLE, PHARMACOLOGICALLY ACCEPTABLE RADIOPAQUE SUBSTANCE IN WATER CONTAINING FROM ABOUT 1 TO ABOUT 20 PERCENT BY WEIGHT OF POLYETHYLENE GLYCOL 6000 AS A THICKENING AGENT AND FROM ABOUT 0.01 TO ABOUT 0.5 PERCENT BY WEIGHT OF POLYETHYLENE GLYCOL 600 MONOOLEATE, SAID WEIGHT PERCENTS BEING RELATIVE TO THE TOTAL VOLUME OF THE SUSPENSION.
References Cited (Backward Citations)
US2779707A
Cited
US2870063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |