US3132993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetracycline formulations stabilized by bisulfittes
Assignee: Bristol Myers Co
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Filing: 1955-03-30
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Granted: 1964-05-12
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Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Granatek Alphonse Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:49
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN AQUEOUS SUSPENSION SUITABLE ONLY FOR ORAL ADMINISTRATION OF A TETRACYCLINE ANTIBIOTIC SELECTED FROM THE GROUP CONSISTING OF AMPHOTERIC TETRACYCLINE, TETRACYCLINE HYDROCHLORIDE AND ALKALINE EARTH METAL SALTS OF TETRACYCLINE COLOR-STABILIZED BY THE PRESENCE OF FROM 0.001 TO 0.5 PERCENT BY WEIGHT OF SAID FORMULA OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BISULFITES, ALKALINE EARTH METAL BISULFITES, FORMALDEHYDE SODIUM BISULFITE, ACETONE SODIUM BISULFITE, ALKALI METAL META-BISULFITES AND ALKALINE EARTH METAL META-BISULFITES.
Claim 2
Dependent Claim
74 words
AN AQUEOUS SUSPENSION SUITABLE ONLY FOR ORAL ADMINISTRATION OF A TETRACYCLINE ANTIBIOTIC SELECTED FROM THE GROUP CONSISTING OF AMPHOTERIC TETRACYCLINE, TETRACYCLINE HYDROCHLORIDE AND ALKALINE EARTH METAL SALTS OF TETRACYCLINE COLOR-STABILIZED BY THE PRESENCE OF FROM 0.001 TO 0.5 PERCENT BY WEIGHT OF SAID FORMULA OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BISULFITES, ALKALINE EARTH METAL BISULFITES, FORMALDEHYDE SODIUM BISULFITE, ACETONE SODIUM BISULFITE, ALKALI METAL META-BISULFITES AND ALKALINE EARTH METAL META-BISULFITES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |