US3041333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted cyclopropylcarboxyamido derivatives of penicillanic acid
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1960-05-11
•
Granted: 1962-06-26
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Expires: 1980-05-11
Abstract
No abstract record available.
Inventors
- 👤 Alfred W Chow
- 👤 Weinstock Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:02
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
COMPOUNDS HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
5 words
COMPOUNDS HAVING THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
BE569728A
Cited
US2479297A
Cited
US2479295A
Cited
US2479296A
Cited
US2941995A
Cited
US2985648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |