Patent US3530119A successfully refreshed from Google Patents.
US3530119A
Expired / Lapsed
US
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Styryl benzoxazoles
Assignee: Hoechst AG
•
Filing: 1963-06-07
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Granted: 1970-09-22
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Expires: 1983-06-07
Abstract
No abstract record available.
Inventors
- 👤 Erich Schinzel
- 👤 Rolf Austrup
- 👤 Karl Heinz Lebkucher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:43
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/56; C07D263/60; D; D06; D06L; D06L4/00; D06L4/60; D06L4/614; D06L4/636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2842545A
Cited
CA578303A
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US3118883A
Cited
CH348967A
Cited
FR1248230A
Cited
FR1336949A
Cited
US3262929A
Cited
US3158610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |