US3390179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel 10, 11-dihydro-10, 11-dihydroxy-(3-substituted aminopropylidene)-5h-dibenzo [a, d] cycloheptenes
Assignee: Merck and Co Inc
•
Filing: 1963-07-22
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Granted: 1968-06-25
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Howard B Hucker
- 👤 Marcia E Christy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:47
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US3234279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |