Patent US4062862A successfully refreshed from Google Patents.
US4062862A
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5-Benzyl-2-oxazolidone derivatives and a process for producing the same
Assignee: Nippon Chemiphar Co Ltd
•
Filing: 1976-07-01
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Granted: 1977-12-13
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Expires: 1996-07-01
Abstract
Abstract 5-Benzyl-2-oxazolidone derivatives of the formula: ##STR1## wherein R 1 represents a hydrogen, halogen, lower alkyl, trihalogenomethyl, phenyl, benzyl, hydroxy, lower alkoxy, phenoxy, benzyloxy, acyloxy, allyloxy, alkylcarbonyl, arylcarbonyl or alkylenedioxy group, and R 2 represents a hydrogen atom, a lower alkyl, lower alkylcarbonyl, lower-dialkylamino-lower-alkyl, aryl, aralkyl or arylcarbonyl group.
Inventors
- 👤 Yasuo Fujimoto
- 👤 Terumi Tamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:55
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/18; C07D263/20; C07D303/04; C07D303/08
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
1 words
5-(o-Chlorobenzyl)-2-oxazolidone.
Claim 2
Dependent Claim
1 words
5-(o-Chlorobenzyl)-2-oxazolidone.
Claim 3
Dependent Claim
1 words
5-(o-Bromobenzyl)-2-oxazolidone.
Claim 4
Dependent Claim
1 words
5-(o-Bromobenzyl)-2-oxazolidone.
Claim 5
Dependent Claim
1 words
5-(o-Fluorobenzyl)-2-oxazolidone.
Claim 6
Dependent Claim
1 words
5-(o-Fluorobenzyl)-2-oxazolidone.
Claim 7
Dependent Claim
1 words
5-(o-Bromobenzyl)-2-oxazolidone.
Claim 8
Dependent Claim
1 words
5-(o-Bromobenzyl)-2-oxazolidone.
Claim 9
Dependent Claim
1 words
5-(m-Fluorobenzyl-2-oxazolidone.
Claim 10
Dependent Claim
1 words
5-(m-Fluorobenzyl-2-oxazolidone.
Claim 11
Dependent Claim
1 words
5-(o-Phenoxybenzyl)-2-oxazolidone.
Claim 12
Dependent Claim
1 words
5-(o-Phenoxybenzyl)-2-oxazolidone.
Claim 13
Dependent Claim
1 words
5-(p-Fluorobenzyl)-2-oxazolidone.
Claim 14
Dependent Claim
1 words
5-(p-Fluorobenzyl)-2-oxazolidone.
Claim 15
Dependent Claim
1 words
5-(o-Methoxybenzyl)-2-oxazolidone.
Claim 16
Dependent Claim
1 words
5-(o-Methoxybenzyl)-2-oxazolidone.
Claim 17
Dependent Claim
1 words
5-(p-Chlorobenzyl)-2-oxazolidone.
Claim 18
Dependent Claim
1 words
5-(p-Chlorobenzyl)-2-oxazolidone.
References Cited (Backward Citations)
US3020262A
Cited
US3133932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |