Patent US3758502A successfully refreshed from Google Patents.
US3758502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compounds
Assignee: TROCLER F
•
Filing: 1971-09-22
•
Granted: 1973-09-11
•
Expires: 1991-09-22
Abstract
Abstract THE INVENTION CONCERNS NOVEL INDOLE DERIVATIVES OF THE FORMULA: 2-(HO-(CH2)2-),4-(R-NH-CH2-CH(-OH)-CH2-O-)INDOLE WHEREIN R IS ALKYL OF 1 TO 6 CARBON ATOMS, OR ALKINYL OF 3 TO 6 CARBONS ATOMS, WHEREIN THE CARBON ATOM ATTACHED TO THE NITROGEN ATOM IS SATURATED. A PROCESS FOR THE PRODUCTION OF THE SAID COMPOUNDS AS WELL AS INTERMEDIATES THEREFOR ARE DESCRIBED. THE COMPOUNDS ARE USEFUL IN THE PROPHYLAXIS AND TREATMENT OF CORONARY DISEASES, SUCH AS ANGINA PECTORIS, AND HEART RHYTHM DISORDERS.
Inventors
- 👤 F Seemann
- 👤 F Troxler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:42
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/18; C07D209/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |