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Patent US3373155A successfully refreshed from Google Patents.
US3373155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted penicillins and cephalosporins
Assignee: AstraZeneca AB
•
Filing: 1965-01-11
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Granted: 1968-03-12
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Expires: 1985-01-11
Abstract
No abstract record available.
Inventors
- 👤 Ekstrom Bertil Ake
- 👤 Sjoberg Berndt Olof Harald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:29
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
ANTIMICROBIALLY ACTIVE COMPOUNDS OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
ANTIMICROBIALLY ACTIVE COMPOUNDS OF THE GENERAL FORMULA:
References Cited (Backward Citations)
US2951839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |