US3256105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic molding composition, articles made from same and process for making such articles
Assignee: Standard Oil Co
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Filing: 1963-09-26
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Granted: 1966-06-14
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Expires: 1983-09-26
Abstract
No abstract record available.
Inventors
- 👤 Harvey E Alford
- 👤 Veatch Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:01
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B28/00; C04B28/24; C04B28/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A CERAMIC MOLDING COMPOSITION CONSISTING ESSENTIALLY OF (1) HOLLOW MICROSPHERES OF FUSED GLASS HAVING DIAMETERS WITHIN THE RANGE OF FROM 5 TO 5000 MICRONS, WALL THICKNESSES WITHIN THE RANGE OF FROM 0.5 TO 10% OF THEIR DIAMETERS, AND GAS DENSITIES WITHIN THE RANGE OF FROM 0.1 TO 0.75 AND (2) A BINDER COMPRISING FROM ABOUT 1 TO ABOUT 2.5 PARTS BY WEIGHT OF SOLID SODIUM SILICATE, FROM ABOUT 0.5 TO ABOUT 6 PARTS BY WEIGHT OF BORIC ACID, FROM ABOUT 0.5 TO ABOUT 1.5 PARTS BY WEIGHT OF CLAY, FROM 0 TO ABOUT 2 PATS BY WEIGHT OF A SODIUM SILICATE SOLUTION AND FROM 0 TO ABOUT 2 PARTS BY WEIGHT OF A SURFACE-ACTIVE AGENT, SAID MICROSPHERES BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF FROM 2 TO 7 VOLUMES PER VOLUME OF BINDER.
Claim 2
Dependent Claim
135 words
A CERAMIC MOLDING COMPOSITION CONSISTING ESSENTIALLY OF (1) HOLLOW MICROSPHERES OF FUSED GLASS HAVING DIAMETERS WITHIN THE RANGE OF FROM 5 TO 5000 MICRONS, WALL THICKNESSES WITHIN THE RANGE OF FROM 0.5 TO 10% OF THEIR DIAMETERS, AND GAS DENSITIES WITHIN THE RANGE OF FROM 0.1 TO 0.75 AND (2) A BINDER COMPRISING FROM ABOUT 1 TO ABOUT 2.5 PARTS BY WEIGHT OF SOLID SODIUM SILICATE, FROM ABOUT 0.5 TO ABOUT 6 PARTS BY WEIGHT OF BORIC ACID, FROM ABOUT 0.5 TO ABOUT 1.5 PARTS BY WEIGHT OF CLAY, FROM 0 TO ABOUT 2 PATS BY WEIGHT OF A SODIUM SILICATE SOLUTION AND FROM 0 TO ABOUT 2 PARTS BY WEIGHT OF A SURFACE-ACTIVE AGENT, SAID MICROSPHERES BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF FROM 2 TO 7 VOLUMES PER VOLUME OF BINDER.
References Cited (Backward Citations)
US2553759A
Cited
US2797201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |