US2907665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vitreous enamel
Assignee: Consolidated Electrodynamics Corp
•
Filing: 1956-12-17
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Granted: 1959-10-06
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Expires: 1976-12-17
Abstract
No abstract record available.
Inventors
- 👤 John T Fraher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:17
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B3/087; C; C03; C03C; C03C3/00; C03C3/04; C03C3/062; C03C3/076; C03C3/078; C03C8/00; C03C8/02; C03C8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A VITREOUS ENAMEL WHICH CONSISTS OF A RELATIVELY MINOR PROPORTION OF A FRIT AND A RELATIVELY MAJOR PROPORTION OF A FLUX, THE FRIT COMPRISING A MIXTURE OF FORM ABOUT 10% TO ABOUT 50% BY WEIGHT OF ZINC OXIDE FROM ABOUT 10% TO ABOUT 50% BY WEIGHT OF COBALT OXIDE AND FROM ABOUT 10% TO ABOUT 50% BY WEIGHT OF SILICON OXIDE, AND THE FLUX COMPRISING A MIXTURE OF FORM ABOUT 40% TO ABOUT 75% BY WEIGHT OF LEAD BORATE AND FROM ABOUT 25% TO 60% BY WEIGHT OF LEAD BOROSILICATE.
Claim 2
Dependent Claim
90 words
A VITREOUS ENAMEL WHICH CONSISTS OF A RELATIVELY MINOR PROPORTION OF A FRIT AND A RELATIVELY MAJOR PROPORTION OF A FLUX, THE FRIT COMPRISING A MIXTURE OF FORM ABOUT 10% TO ABOUT 50% BY WEIGHT OF ZINC OXIDE FROM ABOUT 10% TO ABOUT 50% BY WEIGHT OF COBALT OXIDE AND FROM ABOUT 10% TO ABOUT 50% BY WEIGHT OF SILICON OXIDE, AND THE FLUX COMPRISING A MIXTURE OF FORM ABOUT 40% TO ABOUT 75% BY WEIGHT OF LEAD BORATE AND FROM ABOUT 25% TO 60% BY WEIGHT OF LEAD BOROSILICATE.
References Cited (Backward Citations)
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Cited
US2397004A
Cited
US2551712A
Cited
US2568847A
Cited
US2587523A
Cited
US2642364A
Cited
US2699399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |