Patent US3198804A successfully refreshed from Google Patents.
US3198804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
alpha-aminomethylpenicillin derivatives
Assignee: Bristol Myers Co
•
Filing: 1965-01-06
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Granted: 1965-08-03
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Expires: 1985-01-06
Abstract
No abstract record available.
Inventors
- 👤 David A Johnson
- 👤 Charles A Panetta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:56
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
45 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN AMPHOTERIC ANTIBACTERIAL COMPOUND AND THE NONTOXIC PHARMACEUTICALLY ACCEPTABLE SALTS THEROF; SAID AMPHOTERIC ANTIBACTERIAL COMPOUND BEING PREPARED BY THE PROCESS WHICH COMPRISES MIXING (A) AN AMINOPENICILLIN SELECTED FROM THE GROU PCONSISTING OF THE ACIDS OF THE FORMULA
Claim 2
Dependent Claim
45 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN AMPHOTERIC ANTIBACTERIAL COMPOUND AND THE NONTOXIC PHARMACEUTICALLY ACCEPTABLE SALTS THEROF; SAID AMPHOTERIC ANTIBACTERIAL COMPOUND BEING PREPARED BY THE PROCESS WHICH COMPRISES MIXING (A) AN AMINOPENICILLIN SELECTED FROM THE GROU PCONSISTING OF THE ACIDS OF THE FORMULA
Claim 3
Dependent Claim
5 words
THE COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
5 words
THE COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2985648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |