US3417085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3,1-benzothiazines and 3,1-benzoxazines
Assignee: Hoechst AG
•
Filing: 1966-05-24
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Granted: 1968-12-17
•
Expires: 1986-05-24
Abstract
No abstract record available.
Inventors
- 👤 Kuch Heinz
- 👤 Seidl Gunther
- 👤 Hoffmann Irmgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:12
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/28; C07D265/34; C07D265/38; C07D219/00; C07D219/02; C07D219/04; C07D219/06; C07D219/14; C07D265/04; C07D265/12; C07D265/14; C07D265/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3168517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |