Patent US3138524A successfully refreshed from Google Patents.
US3138524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pharmaceutical suspensions
Assignee: F Hoffmann La Roche AG
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Filing: 1962-06-06
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Granted: 1964-06-23
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Expires: 1982-06-06
Abstract
No abstract record available.
Inventors
- 👤 Zentner Margaret Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:26
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0087; A61K9/0095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A SUSPENSION OF 3-SULFANILAMIDO-5-METHYL-ISOXAZOLE IN WATER COMPRISING WATER, FROM 3 TO 20% BY WEIGHT OF 3-SULFANILAMIDO-5-METHYL-ISOXAZOLE, FROM 0.01 TO 0.1% BY WEIGHT OF SODIUM LAURYL SULFATE, AND A SUFFICIENT QUANTITY OF SODIUM HYDDROXIDE TO ADJUST THE PH OF THE SUSPENSION TO A PH IN THE RANGE OF 4.3 TO 5.5; THE PERCENTAGES BY WEIGHT BEING USED ON THE TOTAL VOLUME OF SUSPENSION.
Claim 2
Dependent Claim
62 words
A SUSPENSION OF 3-SULFANILAMIDO-5-METHYL-ISOXAZOLE IN WATER COMPRISING WATER, FROM 3 TO 20% BY WEIGHT OF 3-SULFANILAMIDO-5-METHYL-ISOXAZOLE, FROM 0.01 TO 0.1% BY WEIGHT OF SODIUM LAURYL SULFATE, AND A SUFFICIENT QUANTITY OF SODIUM HYDDROXIDE TO ADJUST THE PH OF THE SUSPENSION TO A PH IN THE RANGE OF 4.3 TO 5.5; THE PERCENTAGES BY WEIGHT BEING USED ON THE TOTAL VOLUME OF SUSPENSION.
References Cited (Backward Citations)
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US2854377A
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US2888455A
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US2963403A
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |