US3682668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic-inorganic silicate binder for refractory processes
Assignee: Kubota Corp
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Filing: 1970-06-15
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Granted: 1972-08-08
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Expires: 1990-06-15
Abstract
Abstract SILICI BINDERS ARE PREPARED BY ADMIXING: (1) AN INORGANIC SILICATE, COLLOIDAL SILICA OR A MIXTURE THEREOF WITH ORGANIC SILICATE, AND (2) A SATURATED MONOHYDRIC ALCOHOL AT A PH OF BETWEEN 2.5 AND 0.05. THE RSULTANT SOLUTION IS A BINDER WITH EXCELLENT PROPERTIES. THE BINDER OF THE PRESENT INVENTION POLYMERIZES RAPIDLY, HAS A LON SHELF AND GOOD HEAT RESISTANCE.
Inventors
- 👤 Tadao Fujita
- 👤 Makoto Wake
- 👤 Kunihiko Konishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:46
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B12/00; C04B12/04; C09; C09D; C09D1/00; C09D1/02; C09D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |