US3728382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
15-methyl and 15-ethyl prostaglandin analogs
Assignee: Pharmacia and Upjohn Co
•
Filing: 1970-05-04
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Granted: 1973-04-17
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Expires: 1990-05-04
Abstract
Abstract Prostaglandin E and F compounds with a methyl or an ethyl substituent at the C-15 position are disclosed. These are useful for the same pharmacological purposes as the unsubstituted prostaglandins.
Inventors
- 👤 Gordon Bundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
C; C07; C07C; C07C405/00; A; A61; A61P; A61P43/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
35 words
15-Methyl-PGF2 , an optically active compound according to claim 1 wherein R1 is hydrogen and R2 is methyl. Racemic 15-methyl-PGF2 , a compound according to claim 1 wherein R1 is hydrogen and R2 is methyl.
References Cited (Backward Citations)
FR1533808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |