Patent US2324490A successfully refreshed from Google Patents.
Patent US3845111A successfully refreshed from Google Patents.
US3845111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agmatine prostaglandins
Assignee: Alza Corp
•
Filing: 1970-09-16
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Granted: 1974-10-29
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Expires: 1990-09-16
Abstract
Abstract 1. 1-AMINO-4-GUANIDOBUTANE 11A, 15(S)-DIHYDROXYL-9OXO-13-TRANS-PROSTENOATE.
Inventors
- 👤 A Zaffaroni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:22
CPC Classifications
C; C07; C07C; C07C405/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
1-AMINO-4-GUANIDOBUTANE 11A, 15(S)-DIHYDROXYL-9OXO-13-TRANS-PROSTENOATE.
Claim 2
Dependent Claim
3 words
1-AMINO-4-GUANIDOBUTANE 11A, 15(S)-DIHYDROXYL-9OXO-13-TRANS-PROSTENOATE.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |