US3177209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dihydroanthracene compounds
Assignee: H Lundbeck AS
•
Filing: 1961-09-07
•
Granted: 1965-04-06
•
Expires: 1981-09-07
Abstract
No abstract record available.
Inventors
- 👤 Torkil O Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:04
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; A; A61; A61K; A61K31/00; A61K31/33; C07D279/00; C07D279/10; C07D295/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF (1) AMINOPROPYLIDENE 9, 10-DIHYDROANTHRACENES OF THE FORMULA:
Claim 2
Dependent Claim
15 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF (1) AMINOPROPYLIDENE 9, 10-DIHYDROANTHRACENES OF THE FORMULA:
References Cited (Backward Citations)
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Cited
DE1109166B
Cited
US2955073A
Cited
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Cited
US3073847A
Cited
US3035977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |