US3435023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble mono and disazo dyestuffs containing n-(thiosulfato-alkanoylamino) groups
Assignee: Hoechst AG
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Filing: 1965-10-26
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Granted: 1969-03-25
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Expires: 1985-10-26
Abstract
No abstract record available.
Inventors
- 👤 Fritz Meininger
- 👤 Ernst Hille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:11
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/465; C09B62/47
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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |