US3228930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alpha-aminobenzylpenicillin
Assignee: Beecham Group PLC
•
Filing: 1962-07-06
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Granted: 1966-01-11
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Expires: 1982-07-06
Abstract
No abstract record available.
Inventors
- 👤 Sjoberg Berndt Olof Harald
- 👤 Ekstrom Bertil Ake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:43
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A PROCESS FOR PREPARING A MEMBER SELECTED FROM THE GROUP CONSISTING OF THE ACID A-AMINOBENZYLPENICLLIN OF THE FORMULA:
Claim 2
Dependent Claim
18 words
A PROCESS FOR PREPARING A MEMBER SELECTED FROM THE GROUP CONSISTING OF THE ACID A-AMINOBENZYLPENICLLIN OF THE FORMULA:
References Cited (Backward Citations)
GB918169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |