US3944573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iso-lasalocid A
Assignee: Hoffmann La Roche Inc
•
Filing: 1974-04-02
•
Granted: 1976-03-16
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Expires: 1994-04-02
Abstract
Abstract Iso-lasalocid (an isomer of lasalocid A) is produced by a species of Streptomyces. The isomer, its halogen derivatives and its salts exhibit antibacterial and antiprotozoal activity and are useful as antibacterial and antiprotozoal agents.
Inventors
- 👤 John Westley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:12
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/10; C07D307/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A compound of the formula: ##SPC4## or the pharmaceutically acceptable salts thereof.
Claim 2
Dependent Claim
12 words
A compound of the formula: ##SPC4## or the pharmaceutically acceptable salts thereof.
Claim 3
Dependent Claim
25 words
A compound of the formula ##SPC5## wherein X is selected from the group consisting of chlorine, bromine and iodine, or the pharmaceutically acceptable salts thereof.
Claim 4
Dependent Claim
25 words
A compound of the formula ##SPC5## wherein X is selected from the group consisting of chlorine, bromine and iodine, or the pharmaceutically acceptable salts thereof.
References Cited (Backward Citations)
US3702333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |