US4866067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-piperidino-2,4-diaminopyrimidine-3-oxide salt of 3-carboxypyridine n-oxide and topical, related compositions
Assignee: RICERCHE DI SCHIENA SNC DEL DR MICHELE GIUSEPPE DI SCHIENA & C VIA GARIBALDI - 20080 CISLIANA MILAN ITALY
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Filing: 1987-12-07
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Granted: 1989-09-12
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Expires: 2007-12-07
Abstract
Abstract The 6-piperidino-2,4-diaminopyrimidine-3-oxide salt of 3-carboxypyridine N-oxide, according to formula (I) <IMAGE> I is described. The compound (I) is useful in cosmetic and pharmaceutical field for the treatment of hair loss or of pathologic forms, such as alopecia, exfoliative dermatitis, etc. Topical formulations containing the compound (I) are also described.
Inventors
- 👤 Michele G. Di Schiena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:14
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/50
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
10 words
6-Piperidino-2,4-diaminopyrimidine-3-oxide salt of 3-carboxypyridine N-oxide having the formula (I) ##STR3##
Claim 2
Dependent Claim
10 words
6-Piperidino-2,4-diaminopyrimidine-3-oxide salt of 3-carboxypyridine N-oxide having the formula (I) ##STR3##
Claim 3
Dependent Claim
25 words
A pharmaceutical composition comprising a hair growth promoting effective amount of the compound of formula (I) according to claim 1 and a pharmaceutically acceptable carrier.
Claim 4
Dependent Claim
14 words
The pharmaceutical composition of claim 2, wherein said pharmaceutical carrier is water or alcohol.
Claim 5
Dependent Claim
23 words
The pharmaceutical composition of claim 2, wherein said composition is in the form of a lotion, cream, spray, shampoo, gel, brilliantine, or vandoline.
References Cited (Backward Citations)
US3637697A
Cited
US3464987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |