Patent US3888848A successfully refreshed from Google Patents.
US3888848A
Expired / Lapsed
US
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Ampicillin-chloral hydrate complex
Assignee: Alza Corp
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Filing: 1971-11-08
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Granted: 1975-06-10
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Expires: 1991-11-08
Abstract
Abstract Novel 6-(D-2-amino-2-phenylacetamido)penicillanic acid-2,2,2trichloro-1,1-ethanediol complex. The complex is useful as a broad spectrum antibiotic.
Inventors
- 👤 Takeru Higuchi
- 👤 Kaneto Uekama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:15
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/425; A61K31/429; A61K31/43; C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
6-(D-2-AMINO-2-PHENYLACETAMIDO)PENCILLANIC ACID2,2,2,-TRICHLORO-1,1-ETHANEDIOL COMPLEX.
Claim 2
Dependent Claim
3 words
6-(D-2-AMINO-2-PHENYLACETAMIDO)PENCILLANIC ACID2,2,2,-TRICHLORO-1,1-ETHANEDIOL COMPLEX.
References Cited (Backward Citations)
US2985648A
Cited
US3198788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |