US2913458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New thioxanthones
Assignee: CIBA PHARM PROD Inc
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Filing: 1957-10-17
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Granted: 1959-11-17
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Expires: 1977-10-17
Abstract
No abstract record available.
Inventors
- 👤 Druey Jean
- 👤 Meier Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:59
CPC Classifications
C; C07; C07D; C07D495/00; C07D495/02; C07D495/04; A; A61; A61K; A61K31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A 1-AZA-2-LOWER ALKYL-6-(TETTIARY AMINO-LOWER ALKYLAMINO)-9-METHYL-THIOXANTHONE CONTAINING AT MOST ONE FURTHER SUBSTITUENT IN THE THIOXANTHRONE RING, SAID SUBSTITUENT BEING A METHYL GROUP IN 4-POSITION, THE TERTIARY-AMINO GROUP OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF AMINO GROUPS DISUBSTITUTED BY MEMBERS SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL AND LOWER HYDROXYALKYL GROUPS AND PYRROLIDINO-, PIPERIDINO-, AND MORPHOLINO GROUPS, AND THERAPEUTICALLY USEFUL ACID ADDITION SALTS THEREOF. 8. 1 - AZA - 2,9 - DIMETHYL - 6 - MORPHOLINO-ETHYLAMINOTHIOXANTHONE.
Claim 2
Dependent Claim
77 words
A 1-AZA-2-LOWER ALKYL-6-(TETTIARY AMINO-LOWER ALKYLAMINO)-9-METHYL-THIOXANTHONE CONTAINING AT MOST ONE FURTHER SUBSTITUENT IN THE THIOXANTHRONE RING, SAID SUBSTITUENT BEING A METHYL GROUP IN 4-POSITION, THE TERTIARY-AMINO GROUP OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF AMINO GROUPS DISUBSTITUTED BY MEMBERS SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL AND LOWER HYDROXYALKYL GROUPS AND PYRROLIDINO-, PIPERIDINO-, AND MORPHOLINO GROUPS, AND THERAPEUTICALLY USEFUL ACID ADDITION SALTS THEREOF. 8. 1 - AZA - 2,9 - DIMETHYL - 6 - MORPHOLINO-ETHYLAMINOTHIOXANTHONE.
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) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |