US2708172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating concrete articles with vitrous coatings and resulting article
Assignee: Vibrantz Corp
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Filing: 1954-01-15
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Granted: 1955-05-10
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Expires: 1974-01-15
Abstract
No abstract record available.
Inventors
- 👤 James T Robson
- 👤 Harvey C Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:32
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5022; C04B41/60; C04B41/61; C04B41/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A STRUCTURAL BUILDING ELEMENT HAVING A BODY COMPRISING AGGREGATE MATERIAL AND HYDRAULIC CEMENT AND A VITREOUS COATING ON A SURFACE OF SAID BODY, SAID COATING COMPRISING TWO SEPARATELY FUSED, CONTINUOUS NON-POROUS LAYERS, THE INNER LAYER COMPRISING A FUSED MASS OF FRITTED GLAZE HAVING A MATURING TEMPERATURE OF BETWEEN ABOUT 1000* F. AND 15000* F. INCLUDING THEREIN FROM ABOUT 5% TO ABOUT 70% BY WEIGHT OF SAID GLAZE OF DISCRETE PARTICLES OF A REFRACTORY MATERIAL OF APPRECIABLY HIGHER MELTING POINT THAN SAID FRITTED GLAZE AND THE OUTER LAYER CONSISTING ESSENTIALLY OF FUSED FRITTED GLAZE HAVING A MATURING TEMPERATURE OF BETWEEN ABOUT 1000* C. AND 1500* F.
Claim 2
Dependent Claim
105 words
A STRUCTURAL BUILDING ELEMENT HAVING A BODY COMPRISING AGGREGATE MATERIAL AND HYDRAULIC CEMENT AND A VITREOUS COATING ON A SURFACE OF SAID BODY, SAID COATING COMPRISING TWO SEPARATELY FUSED, CONTINUOUS NON-POROUS LAYERS, THE INNER LAYER COMPRISING A FUSED MASS OF FRITTED GLAZE HAVING A MATURING TEMPERATURE OF BETWEEN ABOUT 1000* F. AND 15000* F. INCLUDING THEREIN FROM ABOUT 5% TO ABOUT 70% BY WEIGHT OF SAID GLAZE OF DISCRETE PARTICLES OF A REFRACTORY MATERIAL OF APPRECIABLY HIGHER MELTING POINT THAN SAID FRITTED GLAZE AND THE OUTER LAYER CONSISTING ESSENTIALLY OF FUSED FRITTED GLAZE HAVING A MATURING TEMPERATURE OF BETWEEN ABOUT 1000* C. AND 1500* F.
References Cited (Backward Citations)
US1900833A
Cited
US2562477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |