US2719150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of octahydroisoquinoline derivatives and intermediates therein
Assignee: F Hoffmann La Roche AG
•
Filing: 1951-11-15
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Granted: 1955-09-27
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Expires: 1971-11-15
Abstract
No abstract record available.
Inventors
- 👤 Hellerbach Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:08
CPC Classifications
C; C07; C07D; C07D217/00; C07D217/02; C07D217/04; C07D217/12; C07D217/18; C07D217/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
1-BENZYLIDENE-2-ALKYL-1,2,3,4,5,6,7,8-OCTAHYDROISO QUINOLINE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
6 words
1-BENZYLIDENE-2-ALKYL-1,2,3,4,5,6,7,8-OCTAHYDROISO QUINOLINE OF THE GENERAL FORMULA
References Cited (Backward Citations)
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Cited
US2255077A
Cited
US2338782A
Cited
US2388663A
Cited
US2463942A
Cited
US2554842A
Cited
US2634272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |