US3904679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
15-Methyl and 15-ethyl prostaglandin F{HD 2{331 {0 {B analogs
Assignee: Pharmacia and Upjohn Co
•
Filing: 1974-02-22
•
Granted: 1975-09-09
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Expires: 1994-02-22
Abstract
Abstract Prostaglandin F2 -type compounds with a methyl or an ethyl substituent at C-15. These are useful for the same pharmacological purposes as the unsubstituted prostaglandins.
Inventors
- 👤 Gordon L Bundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:45
CPC Classifications
C; C07; C07C; C07C405/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
7 words
AN OPTICALLY ACTIVE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
7 words
AN OPTICALLY ACTIVE COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
17 words
15-Methyl-PGF2 an optically active compound according to claim 1 wherein R1 is hydrogen and R2 is methyl.
Claim 4
Dependent Claim
17 words
Racemic 15-methyl-PGF2 , a compound according to claim 1 wherein R1 is hydrogen and R2 is methyl.
Claim 5
Dependent Claim
10 words
15-Ethyl-PGF2 , an optically active compound according to claim 1.
Claim 6
Dependent Claim
16 words
A compound according to claim 1 wherein R1 is alkyl of one to 4 carbon atoms.
Claim 7
Dependent Claim
10 words
A compound according to claim 1 wherein R1 is methyl.
Claim 8
Dependent Claim
9 words
15-Methyl-PGF2 , methyl ester, a compound according to claim
Claim 9
Dependent Claim
9 words
15-Ethyl-PGF2 , methyl ester, a compound according to claim
References Cited (Backward Citations)
US3296091A
Cited
US3514383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |