US3022299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conditioning of pigments
Assignee: GAF Chemicals Corp
•
Filing: 1958-12-30
•
Granted: 1962-02-20
•
Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Harold N Schmidt
- 👤 Tullsen Volney
- 👤 Lawrence D Lytle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:47
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0001; C09B67/0017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS COMPRISING MILLING WITH FORCES PREDOMINANTLY SHEARING IN NATURE A MIXTURE IN THE FORM OF A DOUGHY, KNEDABLE MASS COMPRISING A MEMBER OF THE GROUP CONSISTING OF WATR INSOLUBLE DIOXAZINE AND WATER INSOLUBLE VATTABLE INDIGOID AND QUINONOID ORGANIC PIGMENTS, AND ABOUT 0.5 TO 10 PARTS BY WEIGHT PER PART OF SAID PIGMENTS OF AN ARYL SULFONIC ACID HAVING A CONCENTRATION OF ABOUT 75 TO 100% AND SELECTED FROM THE GROUP CONSISTING OF BENZENE AND NAPHTHALENE SULFONIC ACIDS AND THEIR NUCLEARLY MONO- AND DI-SUBSTITUTED HYDROXY AND LOWER ALKYL DERIVATIVES, AND THEN DILUTING THE MILLED MIXTURE WITH WATER.
Claim 2
Dependent Claim
97 words
A PROCESS COMPRISING MILLING WITH FORCES PREDOMINANTLY SHEARING IN NATURE A MIXTURE IN THE FORM OF A DOUGHY, KNEDABLE MASS COMPRISING A MEMBER OF THE GROUP CONSISTING OF WATR INSOLUBLE DIOXAZINE AND WATER INSOLUBLE VATTABLE INDIGOID AND QUINONOID ORGANIC PIGMENTS, AND ABOUT 0.5 TO 10 PARTS BY WEIGHT PER PART OF SAID PIGMENTS OF AN ARYL SULFONIC ACID HAVING A CONCENTRATION OF ABOUT 75 TO 100% AND SELECTED FROM THE GROUP CONSISTING OF BENZENE AND NAPHTHALENE SULFONIC ACIDS AND THEIR NUCLEARLY MONO- AND DI-SUBSTITUTED HYDROXY AND LOWER ALKYL DERIVATIVES, AND THEN DILUTING THE MILLED MIXTURE WITH WATER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |