US3519648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4,9-dihydrothieno(2,3-b)benzo(e) thiepine derivatives
Assignee: Spofa Sdruzeni Podniku Pro Zdravotnickou Vyrobu
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Filing: 1968-11-04
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Granted: 1970-07-07
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Expires: 1988-11-04
Abstract
No abstract record available.
Inventors
- 👤 Miroslav Protiva
- 👤 Miroslav Rajsner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:02
CPC Classifications
C; C07; C07D; C07D495/00; C07D495/02; C07D495/04; C07D333/00; C07D333/02; C07D333/04; C07D333/26; C07D333/30; C07D333/34
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) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |