US3707560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 4-amino-6-aryl-pyrimidines
Assignee: Pfizer Inc
•
Filing: 1970-10-05
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Granted: 1972-12-26
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Expires: 1990-10-05
Abstract
Abstract 4-AMINO-6-ARYLPYRIMIDIENES AND SALTS THEREOF, A NOVEL CLASS OF INHIBITORS OF PLATELET AGGREGATION AND BRONOCHODILATORS IN MAMMALS.
Inventors
- 👤 Gerald George De Angelis
- 👤 Hans-Jurgen Ernst Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:18
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/30; A; A61; A61P; A61P11/00; A61P11/08; A61P43/00; C07D239/32; C07D239/34; C07D239/36; C07D239/42; C07D239/46; C07D239/56; C07D333/00; C07D333/50; C07D333/52; C07D333/62; C07D333/68; C07D333/70
Claims Analysis
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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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |