US3033700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silica-coated barium metaborate pigments and processes of producing the same
Assignee: Buckman Laboratories Inc
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Filing: 1959-12-14
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Granted: 1962-05-08
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Expires: 1979-12-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Buckman
- 👤 John D Pera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:42
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/02; A; A01; A01C; A01C1/00; A01C1/06; C01; C01B; C01B33/00; C01B33/113; C01B35/00; C01B35/06; C01B35/08; C01B35/10; C01B35/12; C01P; C01P2002/00; C01P2002/02; C01P2002/80; C01P2002/82; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/80; C01P2004/82; C01P2004/84; C01P2006/00; C01P2006/20; C01P2006/60; C01P2006/80; C01P2006/82; C01P2006/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR THE PRODUCTION OF A SILICA-COATED BARIUM METABORATE PIGMENT IN PARTICULATE FORM, WHICH COMPRISES COMMINGLING IN AN AQUEOUS MEDIUM BARIUM METABORATE PARTICLES WITH A SILICATE SELECTED FROM THE GROUP CONSISTING OF LIQUID ALKALI-METAL SILICATES HAVING A RATIO BY WEIGHT OF SILICA TO ALKALI METAL COMPUTED AS ALKALI-METAL OXIDE BETWEEN 2.50:1 AND 4.10:1 AND DEIONIZED PREPARATION COMPUTED AS SILICA BETWEEN APPROXIMATELY 3 AND APPROXIMATELY 25 PERCENT BY WEIGHT OF THE BARIUM METABORATE, HEATING THE SAID MIXTURE AT A TEMPERATURE BETWEEN APPROXIMATELY 75*C. AND APPROXIMATELY 200*C. FOR A PERIOD BETWEEN APPROXIMATELY 1 AND APPROXIMATELY 6 HOURS, AND SUBSEQUENTLY SEPARATING THE PARTICULATE SOLID PRODUCT FROM THE AQUEOUS MEDIUM AND DRYING THE SAME.
Claim 2
Dependent Claim
111 words
A PROCESS FOR THE PRODUCTION OF A SILICA-COATED BARIUM METABORATE PIGMENT IN PARTICULATE FORM, WHICH COMPRISES COMMINGLING IN AN AQUEOUS MEDIUM BARIUM METABORATE PARTICLES WITH A SILICATE SELECTED FROM THE GROUP CONSISTING OF LIQUID ALKALI-METAL SILICATES HAVING A RATIO BY WEIGHT OF SILICA TO ALKALI METAL COMPUTED AS ALKALI-METAL OXIDE BETWEEN 2.50:1 AND 4.10:1 AND DEIONIZED PREPARATION COMPUTED AS SILICA BETWEEN APPROXIMATELY 3 AND APPROXIMATELY 25 PERCENT BY WEIGHT OF THE BARIUM METABORATE, HEATING THE SAID MIXTURE AT A TEMPERATURE BETWEEN APPROXIMATELY 75*C. AND APPROXIMATELY 200*C. FOR A PERIOD BETWEEN APPROXIMATELY 1 AND APPROXIMATELY 6 HOURS, AND SUBSEQUENTLY SEPARATING THE PARTICULATE SOLID PRODUCT FROM THE AQUEOUS MEDIUM AND DRYING THE SAME.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |