US3235564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermediates to certain sulfur-containing ortho-fused polycyclic pyrazole derivatives
Assignee: GD Searle LLC
•
Filing: 1964-03-27
•
Granted: 1966-02-15
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Expires: 1984-03-27
Abstract
No abstract record available.
Inventors
- 👤 Hans A Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:15
CPC Classifications
C; C07; C07D; C07D335/00; C07D335/04; C07D335/06; C07D339/00; C07D495/00; C07D495/02; C07D495/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
3 words
2-TRIFLUOROACETYL-4-THIACHROMANONE. 3. 7-TRIFLUOROACETYL-1,4-DITHIEPAN-6-ONE.
References Cited (Backward Citations)
US2923716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |