US3928609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-alcoholic theophylline product
Assignee: Dooner Laboratories Inc
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Filing: 1973-04-05
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Granted: 1975-12-23
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Expires: 1993-04-05
Abstract
Abstract An improved liquid vehicle for a pharmaceutical composition of a mixture of propylene glycol and glycerine, a novel pharmaceutical composition of theophylline and this vehicle, comprising a composition which serves to solubilize the theophylline without ethyl alcohol, and the process for making the vehicle and the pharmaceutical composition are disclosed.
Inventors
- 👤 George D Behrakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:18
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/06; A61K47/08; A61K47/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A NON-ALCOHOLIC COMPOSITION FOR THE TREATMENT OF BRONCHIOSPASM, CARDIAC ASTHMA AND AS A DIURETIC CONSISTING ESSENTIALLY OF AN EFFECTIVE AMOUNT OF ANHYDROUS THEOPHYLLIN AND A PHARMACEUTICALLY ACCEPTABLE VEHICLE CONSISTING ESSENTIALLY OF 20% PROPYLENE GLYCOL AND 10% GLYCERINE AND WATER.
Claim 2
Dependent Claim
39 words
A NON-ALCOHOLIC COMPOSITION FOR THE TREATMENT OF BRONCHIOSPASM, CARDIAC ASTHMA AND AS A DIURETIC CONSISTING ESSENTIALLY OF AN EFFECTIVE AMOUNT OF ANHYDROUS THEOPHYLLIN AND A PHARMACEUTICALLY ACCEPTABLE VEHICLE CONSISTING ESSENTIALLY OF 20% PROPYLENE GLYCOL AND 10% GLYCERINE AND WATER.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |