Patent US3282944A successfully refreshed from Google Patents.
US3282944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermediates for emetine
Assignee: —
•
Filing: —
•
Granted: 1966-11-01
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Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:00
CPC Classifications
C; C07; C07D; C07D455/00; C07D455/03; C07D455/04; C07D455/06; C07D455/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A COMPOUND OF THE FORMULA 2-(HO-),2-((2-(PHENYL-CH2-),6,7-DI(R-),1,2,3,4TETRAHYDROISOQUINOL-1-YL)-CH2 -),3-(R1-CO-),9,10-DI(R-)1,2,3,4,5,6,7,11B-OCTAHYDROBENZO(A)QUINOLIZINE WHERE R IS LOWER ALKOXY AND R1 IS LOWER ALKYL.
Claim 2
Dependent Claim
17 words
A COMPOUND OF THE FORMULA 2-(HO-),2-((2-(PHENYL-CH2-),6,7-DI(R-),1,2,3,4TETRAHYDROISOQUINOL-1-YL)-CH2 -),3-(R1-CO-),9,10-DI(R-)1,2,3,4,5,6,7,11B-OCTAHYDROBENZO(A)QUINOLIZINE WHERE R IS LOWER ALKOXY AND R1 IS LOWER ALKYL.
References Cited (Backward Citations)
US3121720A
Cited
US3045021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |