US3148996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed ceramic
Assignee: Horizons Inc
•
Filing: 1962-03-26
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Granted: 1964-09-15
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Mark S Vukasovich
- 👤 Herbert L Johns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:40
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/34; C04B28/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A COMPOSITION WHICH SETS INTO A RIGID MONOLITHIC MASS WITHOUT APPLICATION OF EXTERNALLY APPLIED HEAT AND WHICH MAY BE RENDERED POROUS BY INCORPORATION OF GAS BUBBLES PRIOR TO COMPLETE SETTING OF SAID COMPOSITION; SAID COMPOSITION CONSISTING OF: (A) WATER (B) AN ACIDIC PHOSPHATE CONSISTING OF PHOSPHOROUS PENTOXIDE AND AN OXIDE SELECTED FROM THE GROUP CONSISTING OF LIME, ALUMINA, ZIRCONIA AND COMPOUNDS OF SAID OXIDES WHICH ARE BASIC IN REACTION WITH PHOSPHORUS PENTOXIDE AND WHICH ARE DISSOLVED IN AN EXCESS OF PHOSPHORIC ACID; THE PROPORTIONS OF SAID OXIDE TO PHOSPHORUS PENTOXIDE BEING 1 MOLE OF SAID OXIDE TO BETWEEN 0.6 AND 3 MOLES OF PHOSPHORUS PENTOXIDE; THERE BEING AT LEAST ABOUT 1 PART BY WEIGHT OF ACIDIC PHOSPHATE PER PART BY WEIGHT OF WATER; AND (C) A FINELY DIVIDED CALCIUM SILICATE, THE RELATIVE PROPROTIONS OF CALCIUM SILICATE TO THE TOTAL OF PHOSPHATE PLUS WATER BEING APPROXIMATELY IN THE RANGE OF 10 PARTS BY WEIGHT CALCIUM SILICATE TO 90 PARTS BY WEIGHT SAID TOTAL OF PHOSPHATE PLUS WATER AND 70 PARTS BY WEIGHT CALCIUM SILICATE TO 30 PARTS BY WEIGHT SAID TOTAL OF PHOSPHATE PLUS WATER.
Claim 2
Dependent Claim
184 words
A COMPOSITION WHICH SETS INTO A RIGID MONOLITHIC MASS WITHOUT APPLICATION OF EXTERNALLY APPLIED HEAT AND WHICH MAY BE RENDERED POROUS BY INCORPORATION OF GAS BUBBLES PRIOR TO COMPLETE SETTING OF SAID COMPOSITION; SAID COMPOSITION CONSISTING OF: (A) WATER (B) AN ACIDIC PHOSPHATE CONSISTING OF PHOSPHOROUS PENTOXIDE AND AN OXIDE SELECTED FROM THE GROUP CONSISTING OF LIME, ALUMINA, ZIRCONIA AND COMPOUNDS OF SAID OXIDES WHICH ARE BASIC IN REACTION WITH PHOSPHORUS PENTOXIDE AND WHICH ARE DISSOLVED IN AN EXCESS OF PHOSPHORIC ACID; THE PROPORTIONS OF SAID OXIDE TO PHOSPHORUS PENTOXIDE BEING 1 MOLE OF SAID OXIDE TO BETWEEN 0.6 AND 3 MOLES OF PHOSPHORUS PENTOXIDE; THERE BEING AT LEAST ABOUT 1 PART BY WEIGHT OF ACIDIC PHOSPHATE PER PART BY WEIGHT OF WATER; AND (C) A FINELY DIVIDED CALCIUM SILICATE, THE RELATIVE PROPROTIONS OF CALCIUM SILICATE TO THE TOTAL OF PHOSPHATE PLUS WATER BEING APPROXIMATELY IN THE RANGE OF 10 PARTS BY WEIGHT CALCIUM SILICATE TO 90 PARTS BY WEIGHT SAID TOTAL OF PHOSPHATE PLUS WATER AND 70 PARTS BY WEIGHT CALCIUM SILICATE TO 30 PARTS BY WEIGHT SAID TOTAL OF PHOSPHATE PLUS WATER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |