Patent US3137627A successfully refreshed from Google Patents.
US3137627A
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Nu-(1-pyrrolidinomethyl) tetracycline and acid compositions for aqueous acidified injections having a ph of not more than about 4
Assignee: Bristol Myers Co
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Filing: 1962-03-12
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Granted: 1964-06-16
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Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Frank H Buckwalter
- 👤 Murray A Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:46
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A SUBSTANTIALLY ANHYDROUS MIXTURE COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF N-(1-PYRROLIDINOMETHYL) TETRACYCLINE AND THE NONTOXIC ACID ADDITION SALTS THEREOF; AND A NONTOXIC ACIDIFYING AGENT, SAID NONTOXIC ACIDIFYING AGENT BEING PRESENT IN AN AMOUNT SUFFICIENT TO ADJUST THE SOLUITON, RESULTING FROM THE RECONSTITUTION OF SAID MIXTURE WITH WATER, T A PH OF NOT MORE THAN 4.
Claim 2
Dependent Claim
58 words
A SUBSTANTIALLY ANHYDROUS MIXTURE COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF N-(1-PYRROLIDINOMETHYL) TETRACYCLINE AND THE NONTOXIC ACID ADDITION SALTS THEREOF; AND A NONTOXIC ACIDIFYING AGENT, SAID NONTOXIC ACIDIFYING AGENT BEING PRESENT IN AN AMOUNT SUFFICIENT TO ADJUST THE SOLUITON, RESULTING FROM THE RECONSTITUTION OF SAID MIXTURE WITH WATER, T A PH OF NOT MORE THAN 4.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |