Patent US3714159A successfully refreshed from Google Patents.
US3714159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,2-diaryl-4-(4'-aryl-4'-hydroxy-piper-idino)-butyramides
Assignee: Janssen Pharmaceutica NV
•
Filing: 1971-03-30
•
Granted: 1973-01-30
•
Expires: 1991-03-30
Abstract
Abstract COMPOUNDS OF THE CLASS OF 2,2-DIARYL-4-(4''-ARYL-4''HYDROXY-PIPERIDINO)BUTYRAMIDES WHEREIN SAID ARYL AND SAID AMIDE FUNCTIONS ARE VARIOUSLY DEFINED GROUPS, SAID BUTURAMIDES HAVING ANTI-DIARRHEAL AND ANALGESIC ACTVITES; ALSO INCLUDED ARE NOVEL INTERMEDIATES USED IN THE SYNTHESIS OF SAID BUTYRAMIDES.
Inventors
- 👤 P Janssen
- 👤 C Niemegeers
- 👤 R Stokbroekx
- 👤 J Vandenberk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:48
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/74; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/52
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |