US3084151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-insoluble metalliferous azo-dyestuffs and process for preparing them
Assignee: Hoechst AG
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Filing: 1960-09-07
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Granted: 1963-04-02
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Expires: 1980-09-07
Abstract
No abstract record available.
Inventors
- 👤 Gross Richard
- 👤 Hertel Hasso
- 👤 Staab Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:22
CPC Classifications
C; C09; C09B; C09B45/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A WATER-INSOLUBLE COMPLEX METAL COMPOUND CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF COBALT, COPPER, AND NICKEL, OR AN AZO-DYESTUFF HAVING THE FOLLOWING GENERAL FORMULA
Claim 2
Dependent Claim
26 words
A WATER-INSOLUBLE COMPLEX METAL COMPOUND CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF COBALT, COPPER, AND NICKEL, OR AN AZO-DYESTUFF HAVING THE FOLLOWING GENERAL FORMULA
References Cited (Backward Citations)
US1667667A
Cited
US2109552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |