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US3080356A
Expired / Lapsed
US
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Process for the production of synthetic penicillins
Assignee: Beecham Research Laboratories Ltd
•
Filing: 1960-09-20
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Granted: 1963-03-05
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Expires: 1980-09-20
Abstract
No abstract record available.
Inventors
- 👤 Catlin Eric Robert
- 👤 Mehta Minoo Dossabhoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:38
CPC Classifications
C; C07; C07D; C07D499/00; C07D499/21; C07D499/44; C07D499/48; C07D499/58; C07D499/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PROCESS FOR THE PREPARATION OF A PENICILLIN SAID PENICILLIN HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
A PROCESS FOR THE PREPARATION OF A PENICILLIN SAID PENICILLIN HAVING THE FORMULA
References Cited (Backward Citations)
US2941995A
Cited
US2951839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |