Patent US3574747A successfully refreshed from Google Patents.
US3574747A
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US
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Amides of diaminoacids
Assignee: Warner Chilcott Pharmaceuticals Inc
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Filing: 1968-03-29
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Granted: 1971-04-13
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Expires: 1988-03-29
Abstract
Abstract NEW AMIDES OF DIAMINOACIDS OF THE FORMULA: NH2-(CH2)N-CH(-NH2)-CO-NH-R (HCL)2 WHEREIN R IS A HIGHER ALKYL (C12-C18) GROUP AND N IS 2-4 POSSESS A BROAD ANTIBACTERIAL SPECTRUM FOR TOPICAL APPLICATION.
Inventors
- 👤 George S Denning Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:17
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/30; C07D263/34; C07D263/44; C07C; C07C271/00; C07C271/06; C07C271/08; C07C271/10; C07C271/22
Claims Analysis
Total Claims: 0
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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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |