US3467675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antidepressant basic derivatives of phthalanes,iso-chromanes and iso-chromenes
Assignee: H Lundbeck AS
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Filing: 1966-03-03
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Granted: 1969-09-16
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Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Povl Viggo Petersen
- 👤 Niels Lassen
- 👤 Jette Norgaard
- 👤 Torben Huld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:09
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/87; C07D307/88; C07D311/00; C07D311/02; C07D311/76; G; G03; G03C; G03C5/00; G03C5/18
Claims Analysis
Total Claims: 0
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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) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |