US2814614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New conversion products of azo dyestuffs containing metal compounds in complex union
Assignee: BASF Schweiz AG
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Filing: 1954-03-29
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Granted: 1957-11-26
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Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Zickendraht Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:06
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A REACTION PRODUCT OF A COLORLESS ALIPHATIC MONOAMINE CONTAINING UP TO 7 CARBON ATOMS WITH A COMPLEX MONOAZO DYESTUFF METAL COMPOUND CONTAINING ONE ATOM OF A METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM AND COBALT BOUND IN COMPLEX UNION WITH SUBSTANTIALLY TWO MONOAZO DYESTUFF MOLECULES SELECTED FROM THE GROUP CONSISTING OF AN O-CARBOXY-BENZENE-O''-HYDROXYMONOAZO DYESTUFF FREE FROM FURTHER CARBOXYLIC ACID AND FROM SULFONIC ACID GROUPS AND AN O:O''-DIHYDROXYMONOAZO DYESTUFF FREE FROM CARBOXYLIC ACID AND SULFONIC ACID GROUPS AND CONTAINING AT LEAST ONE HYDROXYBENZENE RADICAL.
Claim 2
Dependent Claim
84 words
A REACTION PRODUCT OF A COLORLESS ALIPHATIC MONOAMINE CONTAINING UP TO 7 CARBON ATOMS WITH A COMPLEX MONOAZO DYESTUFF METAL COMPOUND CONTAINING ONE ATOM OF A METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM AND COBALT BOUND IN COMPLEX UNION WITH SUBSTANTIALLY TWO MONOAZO DYESTUFF MOLECULES SELECTED FROM THE GROUP CONSISTING OF AN O-CARBOXY-BENZENE-O''-HYDROXYMONOAZO DYESTUFF FREE FROM FURTHER CARBOXYLIC ACID AND FROM SULFONIC ACID GROUPS AND AN O:O''-DIHYDROXYMONOAZO DYESTUFF FREE FROM CARBOXYLIC ACID AND SULFONIC ACID GROUPS AND CONTAINING AT LEAST ONE HYDROXYBENZENE RADICAL.
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) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |