Patent US2009451A successfully refreshed from Google Patents.
US3152000A
Expired / Lapsed
US
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Method for treating titanium dioxide pigments to obtain high gloss properties
Assignee: NL Industries Inc
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Filing: 1963-03-27
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Granted: 1964-10-06
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Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Franklin L Kingsbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:36
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/36; C09C1/3692; C09C3/00; C09C3/04; C09C3/041; C09C3/06; C01; C01P; C01P2006/00; C01P2006/60; C01P2006/80; C01P2006/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
METHOD FOR TREATING TITANIUM DIOXIDE PIGMENT CONTAINING WATER IN AMOUNT OF LESS THAN 10% WHICH COMPRISES THOROUGHLY ADMIXING SAID PIGMENT AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PERCHLORIC ACID, AND A SALT OF PERCHLORIC ACID, SAID PERCHLORATE SALT BEING SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL, ALKALINE EARTH METAL, MAGNESIUM, ZINC, AMMONIUM, LEAD AND SILVER PERCHLORATE, THE AMOUNT OF SAID COMPOUND EMPLOYED, CALCULATED AS PERCHLORIC ACID, BEING FROM 0.05% TO 1.0% OF THE WEIGHT OF SAID PIGMENT, AND DRYING SAID MIXTURE.
Claim 2
Dependent Claim
85 words
METHOD FOR TREATING TITANIUM DIOXIDE PIGMENT CONTAINING WATER IN AMOUNT OF LESS THAN 10% WHICH COMPRISES THOROUGHLY ADMIXING SAID PIGMENT AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PERCHLORIC ACID, AND A SALT OF PERCHLORIC ACID, SAID PERCHLORATE SALT BEING SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL, ALKALINE EARTH METAL, MAGNESIUM, ZINC, AMMONIUM, LEAD AND SILVER PERCHLORATE, THE AMOUNT OF SAID COMPOUND EMPLOYED, CALCULATED AS PERCHLORIC ACID, BEING FROM 0.05% TO 1.0% OF THE WEIGHT OF SAID PIGMENT, AND DRYING SAID MIXTURE.
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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |