Patent US4102901A successfully refreshed from Google Patents.
US4102901A
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Antibacterial compounds
Assignee: Beecham Group PLC
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Filing: 1977-06-06
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Granted: 1978-07-25
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Expires: 1997-06-06
Abstract
Abstract Esters of an acid of formula: ##STR1## which is termed "monic acid" have activity against Gram-positive and Gram-negative organisms.
Inventors
- 👤 Kong Luk
- 👤 John Peter Clayton
- 👤 Norman Harold Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:51
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61P; A61P31/00; A61P31/04; C; C07; C07D; C07D407/00; C07D407/02; C07D407/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
19 words
A compound of formula (II): ##STR34## wherein R is C 1-20 alkyl, C 2-8 alkenyl or C 2-8 alkynyl.
Claim 2
Dependent Claim
19 words
A compound of formula (II): ##STR34## wherein R is C 1-20 alkyl, C 2-8 alkenyl or C 2-8 alkynyl.
Claim 3
Dependent Claim
15 words
A compound as claimed in claim 1 wherein R is a C 1-10 alkyl group.
Claim 4
Dependent Claim
13 words
A compound as claimed in claim 1 wherein R is methyl or ethyl.
Claim 5
Dependent Claim
19 words
A compound as claimed in claim 1 wherein the double bond in formula (II) is in the E configuration.
Claim 6
Dependent Claim
11 words
A compound as claimed in claim 1 wherein R is ethyl.
Claim 7
Dependent Claim
11 words
A compound as claimed in claim 1 wherein R is methyl.
References Cited (Backward Citations)
GB1395907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-24 | 1982-01-23 | 1982-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-24 | 1986-01-23 | 1986-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-24 | 1990-01-23 | 1990-07-25 | $7700.00 | Window Closed / Lapsed |