Patent US3152134A successfully refreshed from Google Patents.
US3152134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetrahydroisoquinoline derivatives and their preparation
Assignee: Wyeth LLC
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Filing: 1963-07-30
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Granted: 1964-10-06
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Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 Leslie G Humber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:29
CPC Classifications
C; C07; C07D; C07D217/00; C07D217/02; C07D217/04; C07D217/06; C07D217/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A COMPOUND SELECTED FROM THE GROUP WHICH CONSISTS OF BASES OF THE FORMULA I, AND SALT THEREOF WITH PHARMACOLOGICALLY ACCEPTABLE ACIDS.
Claim 2
Dependent Claim
21 words
A COMPOUND SELECTED FROM THE GROUP WHICH CONSISTS OF BASES OF THE FORMULA I, AND SALT THEREOF WITH PHARMACOLOGICALLY ACCEPTABLE ACIDS.
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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |