US3417074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metalliferous mono azo dyestuffs
Assignee: Hoechst AG
•
Filing: 1965-05-04
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Granted: 1968-12-17
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Expires: 1985-05-04
Abstract
No abstract record available.
Inventors
- 👤 Kuhne Rudolf
- 👤 Meininger Fritz
- 👤 Noll Walter
- 👤 Rinno Helmut
- 👤 Schiessler Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:25
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/523; C09B62/527; C09B62/535
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) | 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 |