US2597281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-in-water emulsion for vat color printing
Assignee: Wyeth Holdings LLC
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Filing: 1949-09-08
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Granted: 1952-05-20
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Expires: 1969-09-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Borstelmann
- 👤 Fordemwalt Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:31
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A STABLE COLOR PRINTING COMPOSITION COMPRISING A WATER-INSOLUBLE VAT DYESTUFF DISSEMINATED THROUGH A WATER-DISPERSIBLE OIL-IN-WATER TYPE EMULSION PASTE, SAID PASTE CONTAINING (A) WATERSOLUBLE ELECTROLYTES INCLUDING ALKALI METAL CARBONTES AND A WATER-SOLUBLE FORMALDEHYDE SULFOXYLATE SALT (B) AN AQUEOUS BODYING MATERIAL CONSISTING OF A LIQUID HYDROCARBON SUSPENDED THEREIN AS THE INTERNAL PHASE, AND (C) A WATERSOLUBLE SALT OF A LIGNIN SULFONATE.
Claim 2
Dependent Claim
59 words
A STABLE COLOR PRINTING COMPOSITION COMPRISING A WATER-INSOLUBLE VAT DYESTUFF DISSEMINATED THROUGH A WATER-DISPERSIBLE OIL-IN-WATER TYPE EMULSION PASTE, SAID PASTE CONTAINING (A) WATERSOLUBLE ELECTROLYTES INCLUDING ALKALI METAL CARBONTES AND A WATER-SOLUBLE FORMALDEHYDE SULFOXYLATE SALT (B) AN AQUEOUS BODYING MATERIAL CONSISTING OF A LIQUID HYDROCARBON SUSPENDED THEREIN AS THE INTERNAL PHASE, AND (C) A WATERSOLUBLE SALT OF A LIGNIN SULFONATE.
References Cited (Backward Citations)
DE550637C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |