Patent US3144344A successfully refreshed from Google Patents.
US3144344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple color glazes and processes
Assignee: Individual
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Filing: 1962-01-12
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Granted: 1964-08-11
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Expires: 1982-01-12
Abstract
No abstract record available.
Inventors
- 👤 Robert R Umhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:48
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5022; C04B41/80; C04B41/81; C04B41/85; C04B41/86
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
A GLAZE COATING PROCESS OF APPLYING A VITREOUS GLAZE TO A POROUS CERAMIC SOLID CAPABLE OF ITHSTANDING A FIRING TEMPERATURE OF THE GLAZE WHICH COMPRISES COATING SAID SOLID WITH A LIQUID SUSPENSION OF GLAZE COMPONENTS CONTAINING AT LEAST TWO COLORING AGENTS OF DIFFERENT AND CONTRASTING COLORS, ONE OF SAID COLORING AGENTS BEING SOLUBLE IN SAID LIUQID, AND BEING ABSORBED BY THE POROUS SOLID AND ANOTHER SAID COLORING AGENT BEING INSOLUBLE IN SAID LIQUID AND REMAINING ON THE SURFACE OF THE SAID SOLID, THUS EFFECTING A COLOR CHANGE ON THE SURFACE.
Claim 2
Dependent Claim
90 words
A GLAZE COATING PROCESS OF APPLYING A VITREOUS GLAZE TO A POROUS CERAMIC SOLID CAPABLE OF ITHSTANDING A FIRING TEMPERATURE OF THE GLAZE WHICH COMPRISES COATING SAID SOLID WITH A LIQUID SUSPENSION OF GLAZE COMPONENTS CONTAINING AT LEAST TWO COLORING AGENTS OF DIFFERENT AND CONTRASTING COLORS, ONE OF SAID COLORING AGENTS BEING SOLUBLE IN SAID LIUQID, AND BEING ABSORBED BY THE POROUS SOLID AND ANOTHER SAID COLORING AGENT BEING INSOLUBLE IN SAID LIQUID AND REMAINING ON THE SURFACE OF THE SAID SOLID, THUS EFFECTING A COLOR CHANGE ON THE SURFACE.
Claim 3
Dependent Claim
85 words
A GLAZE COMPOSITION COMPRISING A SUSPENSION IN A LIQUID OF VITREOUS GALZE COMPONENTS WHICH FORM A VITREOUS COATING WHEN APPLIED TO A CERAMIC SOLID ABSORBENT SURFACE AND FIRED, SAID SUSPENSION ALSO CONTAINING A COLLOIDAL SUSPENDING AGENT AND AT LEAST TWO DIFFERENT AND CONTRASTING COLORING AGENTS, ONE OF SAID COLORING AGENTS BEING DISSOLVED IN SAID LIQUID AND ANOTHER OF SAID COLORING AGENTS BEING UNDISSOLVED IN SAID LIQUID AND REMAINING ON THE SURFACE OF SAID CERAMIC SOLID ABSORBENT SURFACE, THUS EFFECTING A COLOR CHANGE ON SAID SURACE.
Claim 4
Dependent Claim
85 words
A GLAZE COMPOSITION COMPRISING A SUSPENSION IN A LIQUID OF VITREOUS GALZE COMPONENTS WHICH FORM A VITREOUS COATING WHEN APPLIED TO A CERAMIC SOLID ABSORBENT SURFACE AND FIRED, SAID SUSPENSION ALSO CONTAINING A COLLOIDAL SUSPENDING AGENT AND AT LEAST TWO DIFFERENT AND CONTRASTING COLORING AGENTS, ONE OF SAID COLORING AGENTS BEING DISSOLVED IN SAID LIQUID AND ANOTHER OF SAID COLORING AGENTS BEING UNDISSOLVED IN SAID LIQUID AND REMAINING ON THE SURFACE OF SAID CERAMIC SOLID ABSORBENT SURFACE, THUS EFFECTING A COLOR CHANGE ON SAID SURACE.
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |