US3264122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating coating compositions for electrical conductors
Assignee: Physical Sciences Corp
•
Filing: 1960-08-22
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Granted: 1966-08-02
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Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 John A Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:33
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B3/087; C; C03; C03C; C03C8/00; C03C8/02; C03C8/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
A CERAMIC FRIT, OF THE TYPE COMPRISING GLASS AND ENAMEL FOR COATING METALLIC WIRE TO PROVIDE ELECTRICAL INSULATION FOR THE WIRE WHERE THE ELECTRICAL INSULATION HAS A VALUE OF APPROXIMATELY 1X10**14 OHMS AT A TEMPERATURE OF APPROXIMATELY 70*F. AND A VALUE OF APPROXIMATELY 4X10**7 OHMS AT A TEMPERATURE APPROXIMATELY 1000*F., THE FRIT CONSISTING OF: THE OXIDE OF SILICON HAVING A WEIGHT OF APPROXIMATELY 10%, THE OXIDE OF BISMUTH HAVING A WEIGHT OF APPROXIMATELY 6% TO PROVIDE A LOW THERMONUCLEAR CAPTURE EFFECT, THE OXIDE OF LEAD HAVING A WEIGHT OF APPROXIMATELY 81.3%, THE OXIDE OF CERIUM HAVING A WEIGHT OF APPROXIMATELY 2%, AND THE OXIDE OF ALUMINUM HAVING A WEIGHT OF APPROXIMATELY 0.7%.
Claim 2
Dependent Claim
112 words
A CERAMIC FRIT, OF THE TYPE COMPRISING GLASS AND ENAMEL FOR COATING METALLIC WIRE TO PROVIDE ELECTRICAL INSULATION FOR THE WIRE WHERE THE ELECTRICAL INSULATION HAS A VALUE OF APPROXIMATELY 1X10**14 OHMS AT A TEMPERATURE OF APPROXIMATELY 70*F. AND A VALUE OF APPROXIMATELY 4X10**7 OHMS AT A TEMPERATURE APPROXIMATELY 1000*F., THE FRIT CONSISTING OF: THE OXIDE OF SILICON HAVING A WEIGHT OF APPROXIMATELY 10%, THE OXIDE OF BISMUTH HAVING A WEIGHT OF APPROXIMATELY 6% TO PROVIDE A LOW THERMONUCLEAR CAPTURE EFFECT, THE OXIDE OF LEAD HAVING A WEIGHT OF APPROXIMATELY 81.3%, THE OXIDE OF CERIUM HAVING A WEIGHT OF APPROXIMATELY 2%, AND THE OXIDE OF ALUMINUM HAVING A WEIGHT OF APPROXIMATELY 0.7%.
Claim 3
Dependent Claim
98 words
AN ELECTRICALLY INSULATING, LOW-THERMONEUTRON-CAPTURE WIRE COATING COMPOSITION, OF THE TYPE COMPRISING GLASS AND ENAMEL, WHERE THE ELECTRICAL INSULATION APPROACHES APPROXIMATELY 1X10**14 OHMS AT A TEMPERATURE OF APPROXIMATELY 70*F. AND APPROACHES APPROXIMATELY 4X10**7 OHMS AT A TEMPERATURE OF APPROXIMATELY 1000*F., THE COATING COMPOSITION CONSISTING OF: A FRIT OF LEAD OXIDE ABOUT 70 TO 76 PARTS BY WEIGHT, SILICON DIOXIDE ABOUT 10 TO 14 PARTS BY WEIGHT, BISMUTH TRIOXIDE ABOUT 6 TO 14 PARTS BY WEIGHTS, AND FROM 4 TO 6 PARTS BY WEIGHT OF AT LEAST ONE OF THE OXIDES OF BARIUM, LANTHANUM, MAGNESIUM, CALCIUM, ZINC, STRONTIUM AND BERYLLIUM.
Claim 4
Dependent Claim
98 words
AN ELECTRICALLY INSULATING, LOW-THERMONEUTRON-CAPTURE WIRE COATING COMPOSITION, OF THE TYPE COMPRISING GLASS AND ENAMEL, WHERE THE ELECTRICAL INSULATION APPROACHES APPROXIMATELY 1X10**14 OHMS AT A TEMPERATURE OF APPROXIMATELY 70*F. AND APPROACHES APPROXIMATELY 4X10**7 OHMS AT A TEMPERATURE OF APPROXIMATELY 1000*F., THE COATING COMPOSITION CONSISTING OF: A FRIT OF LEAD OXIDE ABOUT 70 TO 76 PARTS BY WEIGHT, SILICON DIOXIDE ABOUT 10 TO 14 PARTS BY WEIGHT, BISMUTH TRIOXIDE ABOUT 6 TO 14 PARTS BY WEIGHTS, AND FROM 4 TO 6 PARTS BY WEIGHT OF AT LEAST ONE OF THE OXIDES OF BARIUM, LANTHANUM, MAGNESIUM, CALCIUM, ZINC, STRONTIUM AND BERYLLIUM.
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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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |