US3944549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino derivatives of 1,4-benzodioxan
Assignee: Cephalon France SAS
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Filing: 1973-10-23
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Granted: 1976-03-16
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Expires: 1993-10-23
Abstract
Abstract 1-[2-(1,4-benzodioxanyl)methyl]-4-(2-hydroxyethyl)-piperazine hemifumarate and the related compounds of formula:
Inventors
- 👤 Louis Lafon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:37
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/10; C07D319/14; C07D319/16; C07D319/20; A; A61; A61P; A61P9/00; A61P9/08
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2-hydroxyethyl)-piperazin hemifumarate.
Claim 2
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2-hydroxyethyl)-piperazin hemifumarate.
Claim 3
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2,3-dihydroxypropyl)-piperazine dihydrochloride.
Claim 4
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2,3-dihydroxypropyl)-piperazine dihydrochloride.
Claim 5
Dependent Claim
6 words
The compound 1-[2-(6- or 7-methyl-1,4-benzodioxanyl)-methyl]-4-(2-hydroxyethyl)-piperazine dihydrochloride.
Claim 6
Dependent Claim
6 words
The compound 1-[2-(6- or 7-methyl-1,4-benzodioxanyl)-methyl]-4-(2-hydroxyethyl)-piperazine dihydrochloride.
Claim 7
Dependent Claim
7 words
The compound 1-[2-(6- or 7-{tertiary butyl}-1,4-benzodioxanyl)-methyl]-4-(2-hydroxyethyl)-piperazine dihydrochloride.
Claim 8
Dependent Claim
7 words
The compound 1-[2-(6- or 7-{tertiary butyl}-1,4-benzodioxanyl)-methyl]-4-(2-hydroxyethyl)-piperazine dihydrochloride.
Claim 9
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-[2-(propionyloxy)-ethyl]-piperazine dihydrochloride.
Claim 10
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-[2-(propionyloxy)-ethyl]-piperazine dihydrochloride.
Claim 11
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-[2-(acetyloxy)-ethyl]-piperazine dihydrochloride.
Claim 12
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-[2-(acetyloxy)-ethyl]-piperazine dihydrochloride.
Claim 13
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2-pyrimidinyl)-piperazine dihydrochloride.
Claim 14
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2-pyrimidinyl)-piperazine dihydrochloride.
Claim 15
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2,6-dimethylacetanilido)-piperazine dihydrochloride.
Claim 16
Dependent Claim
4 words
The compound 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2,6-dimethylacetanilido)-piperazine dihydrochloride.
References Cited (Backward Citations)
US3312592A
Cited
US3496183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |