US4172082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted thiophenes
Assignee: Riker Laboratories Inc
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Filing: 1978-04-06
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Granted: 1979-10-23
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Expires: 1998-04-06
Abstract
Abstract 3,5-Bis(t-butyl)-4-hydroxyphenyl- and 3,5-bis(t-butyl)-4-hydroxybenzoyl-substituted thiophenes have valuable pharmacological acitivity as antiinflammatory agents.
Inventors
- 👤 George G. I. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:49
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/22; C07D333/14; C07D333/16; C07D333/26; C07D333/28
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
21 words
A compound of the formula ##STR3## wherein L is carbonyl or a carbon-carbon bond and R is hydrogen, methyl or halogen.
Claim 2
Dependent Claim
21 words
A compound of the formula ##STR3## wherein L is carbonyl or a carbon-carbon bond and R is hydrogen, methyl or halogen.
Claim 3
Dependent Claim
10 words
A compound according to claim 1 wherein R is hydrogen.
Claim 4
Dependent Claim
10 words
A compound according to claim 1 wherein L is carbonyl.
Claim 5
Dependent Claim
7 words
The compound 2,6-di(t-butyl)-4-(2'-thenoyl)phenol according to claim 1.
Claim 6
Dependent Claim
7 words
The compound 2,6-di(t-butyl)-4-(3'-thenoyl)phenol according to claim 1.
Claim 7
Dependent Claim
7 words
The compound 4-(5'-chloro-2'-thenoyl)-2,6-di(t-butyl)phenol according to claim 1.
Claim 8
Dependent Claim
7 words
The compound 2,6-di(t-butyl)-4-(2'-thienyl)phenol according to claim 1.
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) | 1982-10-22 | 1983-04-23 | 1983-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-22 | 1987-04-23 | 1987-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-22 | 1991-04-23 | 1991-10-23 | $7700.00 | Window Closed / Lapsed |