Patent US3225038A successfully refreshed from Google Patents.
US3225038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzyl substituted-pyridinomethyl cephalosporins
Assignee: Eli Lilly and Co
•
Filing: 1963-06-05
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Granted: 1965-12-21
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Expires: 1983-06-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Flynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:58
CPC Classifications
C; C07; C07D; C07D501/00; C07D501/14; C07D501/16; C07D501/20; C07D501/24; C07D501/38; C07D501/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
7 - PHENYLACETAMIDO-3-(4''-CARBAMYLPYRIDINOMETHYL)3-CEPEM-4-CARBOXYLIC ACID. 2. 7 - PHENYLACETAMIDO-3-(3''-CARBAMYLPYRIDINOMETHYL)3-CEPHEM-4-CARBOXYLIC ACID.
Claim 2
Dependent Claim
9 words
7 - PHENYLACETAMIDO-3-(4''-CARBAMYLPYRIDINOMETHYL)3-CEPEM-4-CARBOXYLIC ACID. 2. 7 - PHENYLACETAMIDO-3-(3''-CARBAMYLPYRIDINOMETHYL)3-CEPHEM-4-CARBOXYLIC ACID.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |