US2984576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uses of zirconia sols
Assignee: EIDP Inc
•
Filing: 1956-10-10
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Granted: 1961-05-16
•
Expires: 1976-10-10
Abstract
No abstract record available.
Inventors
- 👤 Guy B Alexander
- 👤 Bugosh John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:29
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1315; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/6303
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A COMPOSITION CONSISTING ESSENTIALLY OF AN UNFIRED MIXTURE OF A BOUND REFRACTORY MATERIAL AND, AS A BINDING AGENT THEREFOR, FROM 5 TO 35% BY WEIGHT OF A METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF ZIRCONIA AND HAFNIA IN THE FORM OF A SOL OF PARTICLES HAVING A SURFACE AREA FROM 5 TO 400 M.2/G., BEING COMPOSED OF ULTIMATE PARTICLES OF 5 TO 200 MILLIMICRONS AND WHICH WHEN DISPERSED IN A LIQUID MEDIUM FORM A DISPERSION IN WHICH THE PERCENT OF SOLIDS IN THE DISPERSED PHASE IS AT LEAST 30.
Claim 2
Dependent Claim
90 words
A COMPOSITION CONSISTING ESSENTIALLY OF AN UNFIRED MIXTURE OF A BOUND REFRACTORY MATERIAL AND, AS A BINDING AGENT THEREFOR, FROM 5 TO 35% BY WEIGHT OF A METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF ZIRCONIA AND HAFNIA IN THE FORM OF A SOL OF PARTICLES HAVING A SURFACE AREA FROM 5 TO 400 M.2/G., BEING COMPOSED OF ULTIMATE PARTICLES OF 5 TO 200 MILLIMICRONS AND WHICH WHEN DISPERSED IN A LIQUID MEDIUM FORM A DISPERSION IN WHICH THE PERCENT OF SOLIDS IN THE DISPERSED PHASE IS AT LEAST 30.
References Cited (Backward Citations)
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Cited
AT106485B
Cited
US1816006A
Cited
US1951718A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |