US2852331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low viscosity stabilized vat dye pastes
Assignee: GAF Chemicals Corp
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Filing: 1955-06-01
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Granted: 1958-09-16
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Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Youse Earl Lincoln
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:46
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0077
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A VAT DYE COMPOSITION IN PASTE FORM COMPRISING A DISPERSION OF 3,3''-DICHLORO-N-DIHYDRO-1,2,1'',2''-ANTHRAQUI NONEAZINE IN WATER BY MEANS OF AN ANIONIC DISPERSING AGENT, SAID DISPERSION BEING STABILIZED AT LOW VISCOSITY WITH A STABILIZING AGENT SELECTED FROM THE GROUP CONSISTING OF CAPRYLIC ACID, OLEIC ACID, ACTYL PHENOL, DIBUTYL PHTHALATE, AND EPICHLORHYDRIN.
Claim 2
Dependent Claim
49 words
A VAT DYE COMPOSITION IN PASTE FORM COMPRISING A DISPERSION OF 3,3''-DICHLORO-N-DIHYDRO-1,2,1'',2''-ANTHRAQUI NONEAZINE IN WATER BY MEANS OF AN ANIONIC DISPERSING AGENT, SAID DISPERSION BEING STABILIZED AT LOW VISCOSITY WITH A STABILIZING AGENT SELECTED FROM THE GROUP CONSISTING OF CAPRYLIC ACID, OLEIC ACID, ACTYL PHENOL, DIBUTYL PHTHALATE, AND EPICHLORHYDRIN.
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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |