Patent US3238212A successfully refreshed from Google Patents.
US3238212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-substituted-1-phenyl(or substituted phenyl)-2-[2-methyl-6, 7-substituted-1, 2, 3, 4-tetrahydroisoquinolinyl-(1)] ethanes
Assignee: F Hoffmann La Roche AG
•
Filing: 1962-12-05
•
Granted: 1966-03-01
•
Expires: 1982-12-05
Abstract
No abstract record available.
Inventors
- 👤 Brossi Arnold
- 👤 Jr Alfred Rheiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:32
CPC Classifications
C; C07; C07D; C07D217/00; C07D217/12; C07D217/14; C07D217/16; C07D217/18; C07D217/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US3067203A
Cited
US3127405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |