US3853857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic azomethines of n-thiazolinyl and n-thiazinyl indoles
Assignee: ER Squibb and Sons LLC
•
Filing: 1973-04-30
•
Granted: 1974-12-10
•
Expires: 1993-04-30
Abstract
Abstract Novel indoles having a thiazolinyl or thiazinyl group in the 1position and an azomethine group in either the 5- or the 6position are useful as anti-inflammatory agents.
Inventors
- 👤 V Narayanan
- 👤 R Haugwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:32
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/02; C07D417/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
5 words
AN INDOLE HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
AN INDOLE HAVING THE FORMULA
Claim 3
Dependent Claim
15 words
An indole in accordance with claim 1 wherein R2, R3, and R4 are each hydrogen.
Claim 4
Dependent Claim
10 words
An indole in accordance with claim 1 having the formula
Claim 5
Dependent Claim
10 words
An indole in accordance with claim 1 having the formula
Claim 6
Dependent Claim
11 words
An indole in accordance with claim 3 having the name 5-((o-hYdroxybenzylidene)amino)-1-(2-thiazolin-2-yl)-indole.
References Cited (Backward Citations)
US3755316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |