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US4605552A
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Calcium-antagonist compositions intended for inhalation and process for their manufacture
Assignee: Goedecke GmbH
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Filing: 1984-07-16
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Granted: 1986-08-12
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Expires: 2004-07-16
Abstract
Abstract Pharmaceutical compositions for administration by inhalation, wherein calcium-antagonists are employed as the active substances, e.g., metered-sprays of calcium-antagonists, in particular of diltiazem and a process for their manufacture are described.
Inventors
- 👤 Edgar Fritschi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:32
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/007; A61K9/0073; A61K9/008; A61K31/00; A61K31/33; A61K31/395; A61K31/55; A61P; A61P3/00; A61P3/12; A61P3/14; A61P9/00; A61P9/08; A61P9/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
26 words
A method for treating angina pectoris which comprises administering to a patient in need thereof, by inhalation, an antianginal effective amount of the calcium antagonist diltiazem.
Claim 2
Independent Claim
26 words
A method for treating angina pectoris which comprises administering to a patient in need thereof, by inhalation, an antianginal effective amount of the calcium antagonist diltiazem.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein the calcium-antagonist is diltiazem hydrochloride.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-11 | 1990-02-10 | 1990-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-11 | 1994-02-10 | 1994-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-11 | 1998-02-10 | 1998-08-12 | $7700.00 | Window Closed / Lapsed |