Patent US6563205B1 successfully refreshed from Google Patents.
US4288596A
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Furoindoles
Assignee: Taisho Pharmaceutical Co Ltd
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Filing: 1979-10-09
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Granted: 1981-09-08
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Expires: 1999-10-09
Abstract
Abstract The novel furoindole compounds of the formula <IMAGE> wherein R1 is hydrogen or lower alkyl having 1-3 carbon atoms, and R2 is hydrogen, halogen, trifluoromethyl, methoxy or methyl, are useful as analgesic and anti-inflammatory agents.
Inventors
- 👤 Tsutomu Kameyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:08
CPC Classifications
C; C07; C07D; C07D491/00; C07D491/02; C07D491/04; A; A61; A61P; A61P25/00; A61P25/04; A61P29/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
28 words
A furoindole compound of the formula ##STR4## wherein R 1 is hydrogen or lower alkyl having 1-3 carbon atoms, and R 2 is hydrogen, trifluoromethyl, methoxy or methyl.
Claim 2
Dependent Claim
28 words
A furoindole compound of the formula ##STR4## wherein R 1 is hydrogen or lower alkyl having 1-3 carbon atoms, and R 2 is hydrogen, trifluoromethyl, methoxy or methyl.
Claim 3
Dependent Claim
7 words
A furoindole compound of the formula: ##STR5##
Claim 4
Dependent Claim
7 words
A furoindole compound of the formula: ##STR5##
Claim 5
Dependent Claim
22 words
A furoindole compound of the formula ##STR6## wherein R 1 is hydrogen, ethyl or isopropyl and R 2 is hydrogen or trifluoromethyl.
Claim 6
Dependent Claim
22 words
A furoindole compound of the formula ##STR6## wherein R 1 is hydrogen, ethyl or isopropyl and R 2 is hydrogen or trifluoromethyl.
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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |