US4338319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the treatment of chronic obstructive airway or cardiac diseases
Assignee: Draco AB
•
Filing: 1980-11-21
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Granted: 1982-07-06
•
Expires: 2000-11-21
Abstract
Abstract A method for the treatment of chronic obstructive airway disease or cardiac disease by administration 3-ethylxantine or a pharmaceutically acceptable salt thereof; a pharmaceutical preparation containing 3-ethylxanthine.
Inventors
- 👤 Per G. Kjellin
- 👤 Carl G. A. Persson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:51
CPC Classifications
C; C07; C07D; C07D473/00; C07D473/02; C07D473/04; C07D473/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
33 words
A method for the treatment of chronic obstructive airway disease treatable by theophylline therapy, characterized in administering to a host suffering therefrom a therapeutically active dose of a compound of the formula ##STR3##
Claim 2
Independent Claim
33 words
A method for the treatment of chronic obstructive airway disease treatable by theophylline therapy, characterized in administering to a host suffering therefrom a therapeutically active dose of a compound of the formula ##STR3##
Claim 3
Independent Claim
37 words
A method for the treatment of cardiac disease treatable by theophylline therapy, characterized in administering to a host suffering therefrom a therapeutically active dose of a compound of the formula ##STR4## or a pharmaceutically acceptable salt thereof.
Claim 4
Independent Claim
37 words
A method for the treatment of cardiac disease treatable by theophylline therapy, characterized in administering to a host suffering therefrom a therapeutically active dose of a compound of the formula ##STR4## or a pharmaceutically acceptable salt thereof.
Claim 5
Dependent Claim
30 words
A method according to claim 1 or 2 comprising oral administration dosages of 100-2000 mg of a compound of the formula I or a pharmaceutically acceptable salt thereof 1-4 times/day.
References Cited (Backward Citations)
GB683523A
Cited
US2767182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |