Patent US3389458A successfully refreshed from Google Patents.
US3389458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystallized glass ceramic coatings
Assignee: ANAMAG Inc A CORP OF DE
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Filing: 1964-05-21
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Granted: 1968-06-25
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Expires: 1984-05-21
Abstract
No abstract record available.
Inventors
- 👤 George W Ostrander
- 👤 Wesley W Pendleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:22
CPC Classifications
C; C03; C03C; C03C10/00; C03C10/16; C03C4/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
THE METHOD OF COATING AN ARTICLE WITH A CONTINUOUS COATING OF CRYSTALLIZED GLASS COMPRISING THE STEPS OF: (A) FORMING A GLASS MELT (A) FREE FROM EFFECTIVE AMOUNTS OF DISSOLVED NUCLEATING AGENTS AND (B) CAPABLE OF CRYSTALLIZATION UPON THE ADDITION OF A NUCLEATING AGENT, AND (B) EFFECTING DIMINUTION OF SAID GLASS MELT TO FORM A GLASS POWDER, (C) SUSPENDING SAID GLASS POWDER IN A LIQUID MEDIUM ALONG WITH PARTICLES OF A NUCLEATING AGENT FOR SAID GLASS IN AN AMOUNT SUFFICIENT TO PERFORM A NUCLEATING FUNCTION, (D) INTIMATELY MIXING SAID GLASS POWDER AND SAID PARTICLES IN SAID MEDIUM TO FORM A UNIFORM DISPERSION, (E) COATING SAID ARTICLE WITH SAID DISPERSION, (F) HEATING SAID ARTICLE TO REMOVE SAID LIQUID MEDIUM, (G) FURTHER HEATING SAID ARTICLE TO FUSE SAID GLASS POWDER INTO A CONTINUOUS COATING, (H) HOLDING SAID COATING AT A TEMPERATURE SUFFICIENT TO DISSOLVE SAID NUCLEARING AGENT PARTICLES IN SAID GLASS, AND DISSOLVING SAID AGENT, (I) COOLING SAID COATING SO AS TO PRECIPITATE SAID NUCLEATING AGENT IN THE FORM OF NUCLEI IN SAID GLASS, AND (J) HEATING AND THEREBY CRYSTALLIZING SAID GLASS AROUND SAID NUCLEI TO FORM A CERAMIC COATING ON SAID ARTICLE.
Claim 2
Independent Claim
190 words
THE METHOD OF COATING AN ARTICLE WITH A CONTINUOUS COATING OF CRYSTALLIZED GLASS COMPRISING THE STEPS OF: (A) FORMING A GLASS MELT (A) FREE FROM EFFECTIVE AMOUNTS OF DISSOLVED NUCLEATING AGENTS AND (B) CAPABLE OF CRYSTALLIZATION UPON THE ADDITION OF A NUCLEATING AGENT, AND (B) EFFECTING DIMINUTION OF SAID GLASS MELT TO FORM A GLASS POWDER, (C) SUSPENDING SAID GLASS POWDER IN A LIQUID MEDIUM ALONG WITH PARTICLES OF A NUCLEATING AGENT FOR SAID GLASS IN AN AMOUNT SUFFICIENT TO PERFORM A NUCLEATING FUNCTION, (D) INTIMATELY MIXING SAID GLASS POWDER AND SAID PARTICLES IN SAID MEDIUM TO FORM A UNIFORM DISPERSION, (E) COATING SAID ARTICLE WITH SAID DISPERSION, (F) HEATING SAID ARTICLE TO REMOVE SAID LIQUID MEDIUM, (G) FURTHER HEATING SAID ARTICLE TO FUSE SAID GLASS POWDER INTO A CONTINUOUS COATING, (H) HOLDING SAID COATING AT A TEMPERATURE SUFFICIENT TO DISSOLVE SAID NUCLEARING AGENT PARTICLES IN SAID GLASS, AND DISSOLVING SAID AGENT, (I) COOLING SAID COATING SO AS TO PRECIPITATE SAID NUCLEATING AGENT IN THE FORM OF NUCLEI IN SAID GLASS, AND (J) HEATING AND THEREBY CRYSTALLIZING SAID GLASS AROUND SAID NUCLEI TO FORM A CERAMIC COATING ON SAID ARTICLE.
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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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |