US2626255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zirconium pigments
Assignee: NL Industries Inc
•
Filing: 1950-03-15
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Granted: 1953-01-20
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Expires: 1970-03-15
Abstract
No abstract record available.
Inventors
- 👤 Blumenthal Warren Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:06
CPC Classifications
C; C09; C09B; C09B63/00; C09B63/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A DYE PIGMENT COMPRISING THE WATER INSOLUBLE REACTION PRODUCT OF A WATER SOLUBLE ZIRCONYL SALT AND AN ACID DYE CONTAINING AN ACID GROUP SELECTED FROM THE ACID GROUP CONSISTING OF CARBOXALATE AND SULFONATE.
Claim 2
Dependent Claim
33 words
A DYE PIGMENT COMPRISING THE WATER INSOLUBLE REACTION PRODUCT OF A WATER SOLUBLE ZIRCONYL SALT AND AN ACID DYE CONTAINING AN ACID GROUP SELECTED FROM THE ACID GROUP CONSISTING OF CARBOXALATE AND SULFONATE.
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) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |