US3962243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mepyramine theophylline acetate
Assignee: LABORATORIES MADE SA
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Filing: 1974-10-16
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Granted: 1976-06-08
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Expires: 1994-10-16
Abstract
Abstract The 7-theophylline acetic acid salt of mepyramine possesses bronchial spasmolytic, antiarrhythmic, cerebral oxidation inhibitor and platelet aggregation inhibitor properties. It is prepared by slowly adding a solution of mepyramine to a suspension of 7-theophylline acetic acid in the same solvent to effect the salt-forming reaction. It can be incorporated in various pharmaceutical unit dosage forms.
Inventors
- 👤 Cristobal Martinez Roldan
- 👤 Miguel Fernandez Brana
- 👤 Jose Maria Castellano Berlanga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:37
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/74; C07D473/00; C07D473/02; C07D473/04; C07D473/06; C07D473/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
2-[(2-dimethylaminoethyl) (p-methoxybenzyl)amino]pyridine 1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxopurin-7-acetate.
Claim 2
Dependent Claim
3 words
2-[(2-dimethylaminoethyl) (p-methoxybenzyl)amino]pyridine 1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxopurin-7-acetate.
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) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |