Patent US3976768A successfully refreshed from Google Patents.
US3976768A
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Fortimicin A
Assignee: Abbott Laboratories
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Filing: 1974-07-22
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Granted: 1976-08-24
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Expires: 1994-07-22
Abstract
Abstract A new antibiotic, Fortimicin A, is produced by fermentation of a microorganism belonging to the genus Micromonospora. The antibiotic is accumulated in the culture medium and is isolated therefrom.
Inventors
- 👤 Takashi Nara
- 👤 Seigo Takasawa
- 👤 Ryo Okachi
- 👤 Isao Kawamoto
- 👤 Mitsuyoshi Yamamoto
- 👤 Seiji Sato
- 👤 Tomoyasu Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:17
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/224; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
The antibiotic Fortimicin A characterized by: (a) a molecular weight of 405; (b) the molecular formula of C 17 H 35 N 5 O 6 ; (c) an ultraviolet absorption spectrum essentially as shown in FIG. 1; and (d) an infrared absorption spectrum essentially as shown in FIG. 2 or its pharmaceutically acceptable acid salts.
Claim 2
Dependent Claim
55 words
The antibiotic Fortimicin A characterized by: (a) a molecular weight of 405; (b) the molecular formula of C 17 H 35 N 5 O 6 ; (c) an ultraviolet absorption spectrum essentially as shown in FIG. 1; and (d) an infrared absorption spectrum essentially as shown in FIG. 2 or its pharmaceutically acceptable acid salts.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |