US3464983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4h-benzo(4,5)cyclohepta(1,2-b)thiophenes
Assignee: Sandoz AG
•
Filing: 1967-05-31
•
Granted: 1969-09-02
•
Expires: 1987-05-31
Abstract
No abstract record available.
Inventors
- 👤 Ernst Jucker
- 👤 Anton Ebnother
- 👤 Jean-Michel Bastian
- 👤 Erwin Rissi
- 👤 Andre Stoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:51
CPC Classifications
C; C07; C07D; C07D409/00; C07D409/02; C07D409/04; C07D333/00; C07D333/50; C07D333/78; C07D333/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3275640A
Cited
US3258459A
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US3272826A
Cited
BE651101A
Cited
NL6408529A
Cited
NL6414606A
Cited
NL6414607A
Cited
US3306897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |