US3264130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment and process of producing same
Assignee: JM Huber Corp
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Filing: 1962-08-27
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Granted: 1966-08-02
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Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Robert K Mays
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:20
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; B; B82; B82Y; B82Y30/00; C01B33/22; C01B33/24; C09; C09C; C09C1/00; C09C1/28; C01P; C01P2002/00; C01P2002/02; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/62; C01P2004/64; C01P2004/80; C01P2004/82; C01P2006/00; C01P2006/12; C01P2006/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
172 words
A FINELY DIVIDED METAL SILICATE PRODUCED BY THE REACTION OF A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF METAL OXIDES AND HYDROXIDES OF BARIUM, LEAD, MAGNESIUM, CALCIUM, ZINC AND MIXTURES THEREOF WITH A FINELY DIVIDED REACTIVE SILICA SELECTED FROM THE GROUP CONSISTING OF PHYLLOIDAL SILICA CONTAINING A CONCENTRATION OF SILANOL GROUP OF AT LEAST 1 MICROMOL PER SQUARE METER OF THEIR FLAT SURFACE AREA AND A BET SURFACE AREA OF 40 TO 130 SQUARE METERS PER GRAM, AND PHYLLOIDAL SILICA CONTAINING A CONCENTRATION OF SILANOL GROUPS OF AT LEAST 20 MICROMOLS PER SQUARE METER OF THEIR FLAT SURFACE AREA AND A BET SURFACE AREA OF 300 TO 500 SQUARE METERS PER GRAM, SAID METAL SILICATES CHARACTERIZED BY A POLYMORPHIC PARTICLE SHAPE, A PARTICLE SIZE OF FROM 0.025 TO 5 MICRONS, A BET SURFACE AREA OF FROM 5 TO 500 SQUARE METERS PER GRAM OF WHICH FROM 0% TO 40% IS PORE AREA, AND HAVING A METAL OXIDE TO SILICA MOLAR RATIO FROM ABOUT 1 TO 4 TO ABOUT 4 TO 1.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |