Patent US4094899A successfully refreshed from Google Patents.
US4094899A
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Oxaprostaglandins
Assignee: Pfizer Inc
•
Filing: 1973-04-30
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Granted: 1978-06-13
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Expires: 1993-04-30
Abstract
Abstract omega -TRISNORPROSTAGLANDINS HAVING AT THE 17-POSITION TWO HYDROGEN ATOMS AND ONE SUBSTITUENT OF THE FORMULA:
Inventors
- 👤 Hans-Jurgen E. Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:43
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/93; C07D307/935; C07C; C07C405/00; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
37 words
A compound of the structure ##STR14## wherein R is hydrogen or alkyl having 1 to 3 carbon atoms, n is an integer of from 0 to 1 and m is an integer of from 0 to 4.
Claim 2
Dependent Claim
37 words
A compound of the structure ##STR14## wherein R is hydrogen or alkyl having 1 to 3 carbon atoms, n is an integer of from 0 to 1 and m is an integer of from 0 to 4.
Claim 3
Dependent Claim
2 words
9-oxo-11α,15α-dihydroxy-19-oxa-cis-5-trans-13-prostadienoic acid.
Claim 4
Dependent Claim
2 words
9-oxo-11α,15α-dihydroxy-19-oxa-cis-5-trans-13-prostadienoic acid.
Claim 5
Dependent Claim
2 words
9-oxo-11α,15α-dihydroxy-19-oxa-cis-5-trans-13-ω-homoprostadienoic acid.
Claim 6
Dependent Claim
2 words
9-oxo-11α,15α-dihydroxy-19-oxa-cis-5-trans-13-ω-homoprostadienoic acid.
Claim 7
Dependent Claim
2 words
9-oxo-11α,15α-dihydroxy-18-oxa-cis-5-trans-13-prostadienoic acid.
Claim 8
Dependent Claim
2 words
9-oxo-11α,15α-dihydroxy-18-oxa-cis-5-trans-13-prostadienoic acid.
References Cited (Backward Citations)
US3843713A
Cited
NL7209738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |