US3700470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed ceramic material and method of making the same
Assignee: Visy Glass Operations Australia Pty Ltd
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Filing: 1970-08-31
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Granted: 1972-10-24
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Expires: 1990-08-31
Abstract
Abstract LIGHTWEIGHT FOAMED SOLID SHAPES, E.G. BUILDING PANELS ARE MADE BY MIXING A CERAMIC FILLER, A POWDERED AMPHOTERIC METAL, PREFERABLY ALUMINUM, AND AQUEOUS SODIUM SILICATE, SHAPING THE MIX AND SUBSEQUENTLY CURING IT WITH OR WITHOUT FACING SHEETS. USE OF WASTE CERAMIC MATERIALS, ESPECIALLY POWER STATION FLY ASH, PREFERRED.
Inventors
- 👤 Patrick William Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:36
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C04B22/00; C04B22/02; C04B22/04; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S264/00; Y10S264/43; Y10S264/49; Y10S264/63
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |