US3840550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 6-isothiocyanobenzothiazoles
Assignee: Novartis Corp
•
Filing: 1972-05-22
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Granted: 1974-10-08
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Expires: 1992-05-22
Abstract
Abstract 1. AN ISOTHIOCYANOBENZOTHIAZOLE COMPOUND OF THE FORMULA 2-((R5,R6,R7-PHENYL)-Y-),5-(S=C=N-)-BENZOTHIAZOLE WHEREIN ONE OF R5,R6 AND R7 IS HYDROGEN, FLUORINE, CHLORINE, BROMINE, ALKYL OF FROM ONE TO FOUR CARBON ATOMS, METHOXY, PHENYL OR ISOTHIOCYANO; EACH OF THE OTHERS OF R5,R6 AND R7 IS HYDROGEN, CHLORINE OR METHYL; AND Y IS OXYGEN OR SULFUR.
Inventors
- 👤 P Brenneisen
- 👤 T Wenger
- 👤 J Gallay
- 👤 W Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:04
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/58; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/26; C07D235/28; C07D235/30; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/74; C07D277/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AN ISOTHIOCYANOBENZOTHIAZOLE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
6 words
AN ISOTHIOCYANOBENZOTHIAZOLE COMPOUND OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |