US2554842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Octahydroisoquinoline derivatives
Assignee: F Hoffmann La Roche AG
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Filing: 1950-02-23
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Granted: 1951-05-29
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Expires: 1970-02-23
Abstract
No abstract record available.
Inventors
- 👤 Schnider Otto
- 👤 Grussner Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:08
CPC Classifications
C; C07; C07D; C07D217/00; C07D217/12; C07D217/18; C07D217/20; C07D217/02; C07D217/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 1-(P-METHOXY - BENZYL) -2- METHYL1,2,3,4,5,6,7,8--OCTAHYDROISOQUINOLINE AND ITS ACID ADDITION SALTS.
Claim 2
Dependent Claim
18 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 1-(P-METHOXY - BENZYL) -2- METHYL1,2,3,4,5,6,7,8--OCTAHYDROISOQUINOLINE AND ITS ACID ADDITION SALTS.
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) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |