US3354162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hexahydrobenzo [6,7] cyclohepta [1, 2, 3-d, e] isoquinoline carboxamidine
Assignee: Wyeth LLC
•
Filing: 1966-03-29
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Granted: 1967-11-21
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Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Leslie G Humber
- 👤 Martin A Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:06
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/04; C07D221/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
12 words
A COMPUND SELECTED FROM THE GROUP WHICH COMPRISES COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPUND SELECTED FROM THE GROUP WHICH COMPRISES COMPOUNDS OF THE FORMULA
Claim 3
Dependent Claim
11 words
THE SULFATE SALT OF 1,2,3,7,8,12B-HEXAHYDROBENZO (6,7)CYCLOHEPTA(1,2,3-D,E)ISQUINOLINE-2-CARBOXAMIDINE, AS CLAIMED IN CLAIM 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |