Patent US3812256A successfully refreshed from Google Patents.
US3812256A
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US
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Novel method for lowering blood pressure in mammals
Assignee: Wyeth Holdings LLC
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Filing: 1972-06-05
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Granted: 1974-05-21
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Expires: 1992-06-05
Abstract
Abstract This disclosure describes a method of lowering blood pressure in mammals by the administration of compositions containing as the active component certain 6-(substituted-phenyl)-5-methyl-4,5dihydro-3(2H)-pyridazinones.
Inventors
- 👤 W Curran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:49
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/50
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
33 words
A therapeutic composition in dosage unit form useful for lowering blood pressure in mammals comprising from about 50 mg. to about 1.0 gram per daily dosage unit of 6-(m-nitrophenyl)-2,5-dimethyl-4,5-dihydro-3(2H)-pyridazinone, and a pharmaceutical carrier.
Claim 2
Independent Claim
49 words
The method of lowering blood pressure in a mammal which comprises administering internally to said mammal an effective amount of 6-(m-nitrophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone, in association with a pharmaceutical carrier to provide a daily dosage of from about 1 mg. to about 15 mg. per kilogram of body weight of said mammal.
Claim 3
Independent Claim
49 words
The method of lowering blood pressure in a mammal which comprises administering internally to said mammal an effective amount of 6-(m-nitrophenyl)-2,5-dimethyl-4,5-dihydro-3(2H)-pyridazinone, in association with a pharmaceutical carrier to provide a daily dosage of from about 1 mg. to about 15 mg. per kilogram of body weight of said mammal.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |