US2768907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for enameling metals
Assignee: EIDP Inc
•
Filing: 1953-06-22
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Granted: 1956-10-30
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Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Jr William E Lusby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:37
CPC Classifications
C; C23; C23D; C23D3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD FOR BONDING A VITREOUS ENAMEL COATING TO THE SURFACE OF A METAL COMPRISING PRIOR TO THE APPLICATION OF SAID ENAMEL, COATING SAID SURFACE WITH A THIN FILM OF AN ANHYDROUS SOLUTION OF A METAL ESTER SELECTED FROM THE GROUP CONSISTING OF TITANIUM ESTERS AND ZIRCONIUM ESTERS, HYDROLYZING AND CONDENSING SAID ESTER ON SAID SURFACE, APPLYING AN ENAMELING COMPOSITION THEREOVER, AND THEN FIRING SAID COMPOSITION AT A TEMPERATURE BELOW THAT AT WHICH THE METAL WILL LOSE TENSILE STRENGTH.
Claim 2
Independent Claim
79 words
A METHOD FOR BONDING A VITREOUS ENAMEL COATING TO THE SURFACE OF A METAL COMPRISING PRIOR TO THE APPLICATION OF SAID ENAMEL, COATING SAID SURFACE WITH A THIN FILM OF AN ANHYDROUS SOLUTION OF A METAL ESTER SELECTED FROM THE GROUP CONSISTING OF TITANIUM ESTERS AND ZIRCONIUM ESTERS, HYDROLYZING AND CONDENSING SAID ESTER ON SAID SURFACE, APPLYING AN ENAMELING COMPOSITION THEREOVER, AND THEN FIRING SAID COMPOSITION AT A TEMPERATURE BELOW THAT AT WHICH THE METAL WILL LOSE TENSILE STRENGTH.
References Cited (Backward Citations)
US2572906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |