Patent US2683713A successfully refreshed from Google Patents.
US2683713A
Expired / Lapsed
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Substituted benzylisoquinolines
Assignee: Eli Lilly and Co
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Filing: 1951-02-16
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Granted: 1954-07-13
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Expires: 1971-02-16
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Shepard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:54
CPC Classifications
C; C07; C07D; C07D217/00; C07D217/12; C07D217/18; C07D217/20; C07D217/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A COMPOUND OF THE GROUP CONSISTING OF 6METHOXY - 7 - ETHOXY - 3 - METHYL - 1 - (3'' - ETHOXY - 4'' - METHOXYBENZYL) - ISOQUINOLINE, 6 - ETHOXY - 7 - METHOXY - 3 - METHYL - 1 - (3'',4'' - DIETHOXYBENZYL) - ISOQUINOLINE, 6,7 - DIMETHOXY - 1 (4''-ISOPROPYLBENZYL)-ISOQUINOLINE, AND THEIR ACID ADDITION SALTS.
Claim 2
Dependent Claim
58 words
A COMPOUND OF THE GROUP CONSISTING OF 6METHOXY - 7 - ETHOXY - 3 - METHYL - 1 - (3'' - ETHOXY - 4'' - METHOXYBENZYL) - ISOQUINOLINE, 6 - ETHOXY - 7 - METHOXY - 3 - METHYL - 1 - (3'',4'' - DIETHOXYBENZYL) - ISOQUINOLINE, 6,7 - DIMETHOXY - 1 (4''-ISOPROPYLBENZYL)-ISOQUINOLINE, AND THEIR ACID ADDITION SALTS.
References Cited (Backward Citations)
US1941647A
Cited
DE574656C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |