US3816531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
(2,6-disubstituted benzylidene)amino guanidines and related compounds
Assignee: Wyeth LLC
•
Filing: 1972-08-10
•
Granted: 1974-06-11
•
Expires: 1992-08-10
Abstract
Abstract THIS INVENTION IS CONCERNED WITH (2,6-DISUBSTITUTED BENZYLIDENE)AMINO GUANIDINS AND RELATED COMPOUNDS USEFUL AS HYPOTENSIVE AGENTS. FURTHER, IT RELATES TO COMPOSITIONS OF COMPOUNDS WHICH ARE USEFUL IN SUPPRESSING HYPERTENSION.
Inventors
- 👤 W Bruce
- 👤 T Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:19
CPC Classifications
C; C07; C07C; C07C281/00; C07C281/16; C07C281/18
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |