US3851052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized e-series prostaglandins
Assignee: Pfizer Inc
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Filing: 1972-11-08
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Granted: 1974-11-26
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Expires: 1992-11-08
Abstract
Abstract 1o A STABILIZED PHARMACEUTICAL COMPOSITION COMPRISING A BIOLOGICALLY ACTIVE PROSTAGLANDIN OF THE E-SERIES AND A STORAGE STABILIZING AMOUNT OF AN ALKALI OR ALKALINE EARTH METAL SULFITE SALT.
Inventors
- 👤 D Monkhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:58
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4056; C07F9/4059; A; A61; A61K; A61K31/00; A61K31/557; A61K47/00; A61K47/02; A61K47/06; A61K47/08; A61K47/10; A61K9/00; A61K9/0012; A61K9/0019
Claims Analysis
Total Claims: 0
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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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |