Patent US3843449A successfully refreshed from Google Patents.
US3843449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxamicetin and process for its production
Assignee: Bristol Myers Co
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Filing: 1972-06-22
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Granted: 1974-10-22
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Expires: 1992-06-22
Abstract
Abstract 1. A PROCESS FOR PREPARING A BIOLOGICALLY ACTIVE SUBSTANCE, OXAMICETIN, CHARACTERIZED BY THE STRUCTURE (H3C)2-N-(3,4-DI(HO-),6-(H3C-)-TETRAHYDROPYR-5,2-YLENE)- O-(4-(HO-),6-(H3C-)-TETRAHYDROPYR-5,2-YLENE)-(2-(O=)- 1,2-DIHYDROPYRIMID-1,4-YLENE)-NH-CO-(1,4-PHENYLENE)- NH-CO-C(-CH3)(-NH2)-CH2-OH WHICH COMPRISES CULTIVATING ARTHROBACTER OXAMICETUS, ATCC 21788, IN AN AQUEOUS CARBOHYDRATE MEDIA CONTAINING A NITOGENOUS NUTRIENT UNTIL SUBSTANTIALLY ANTIBIOTIC ACTIVITY IS PRODUCED IN SAID MEDIA.
Inventors
- 👤 K Tomita
- 👤 H Kawaguchi
- 👤 M Konishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:01
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/06; A; A61; A61P; A61P31/00; A61P31/04; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PROCESS FOR PREPARING A BIOLOGICALLY ACTIVE SUBSTANCE, OXAMICETIN, CHARACTERIZED BY THE STRUCTURE
Claim 2
Dependent Claim
13 words
A PROCESS FOR PREPARING A BIOLOGICALLY ACTIVE SUBSTANCE, OXAMICETIN, CHARACTERIZED BY THE STRUCTURE
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |