US3736331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isothioureas
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1970-10-14
•
Granted: 1973-05-29
•
Expires: 1990-10-14
Abstract
Abstract N-(HETEROCYCLIC-ALKYL)ISOTHIOUREAS. THESE COMPOUNDS INHIBIT HISTAMINE ACTIVITY.
Inventors
- 👤 J Black
- 👤 G Durant
- 👤 J Emmett
- 👤 C Ganellin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:04
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/22; C07D277/28; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/40; C07D231/00; C07D231/02; C07D231/10; C07D231/12; C07D233/00; C07D233/04; C07D233/20; C07D233/24; C07D233/26; C07D233/54; C07D233/64; C07D249/00; C07D249/02; C07D249/08
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |