US3309404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of dibenzocycloheptenes and a process for their preparation
Assignee: Merck and Co Inc
•
Filing: 1963-08-01
•
Granted: 1967-03-14
•
Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 Edward L Engelhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:45
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; C; C07; C07C; C07C311/00; C07C311/15
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
6 words
3-DIMETHYLSULFAMOYL - 5 - (3-DIMETHYLAMINOPROPYL) 5H-DIBENZO(A,D)CYCLOHEPTENE.
Claim 2
Dependent Claim
6 words
3-DIMETHYLSULFAMOYL - 5 - (3-DIMETHYLAMINOPROPYL) 5H-DIBENZO(A,D)CYCLOHEPTENE.
Claim 3
Dependent Claim
8 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF
Claim 4
Dependent Claim
8 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF
Claim 5
Dependent Claim
7 words
A COMPOUND SELECTED FROM THE GROUPCONSISTING OF
Claim 6
Dependent Claim
7 words
A COMPOUND SELECTED FROM THE GROUPCONSISTING OF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |