Patent US3267342A successfully refreshed from Google Patents.
US3267342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitor
Assignee: Corning Glass Works
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Filing: 1965-05-18
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Granted: 1966-08-16
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Expires: 1985-05-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles R Pratt
- 👤 Walter H Tarcza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:18
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/005; H01G4/008; H01G4/0085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
AN ELECTRICAL CAPACITOR COMPRISING A NON-CONDUCTIVE SUBSTRATE, A FIRST BUFFER LAYER OF AT LEAST PARTLY CRYSTALLIZED VITREOUS MATERIAL FUSED TO SAID SUBSTRATE, A FIRST METALLIC CAPACITOR PLATE FROMED OF FINELY DIVIDED METAL, SAID FIRST BUFFER LAYER BEING FUSED TO SAID FIRST CAPACITOR PLATE, A DIELECTRIC LAYER OF AT LEAST PARTLY CRYSTALLIZED VITREOUS MATERIAL FUSED TO SAID FIRST CAPACITOR PLATE SO THAT A PORTION OF SAID PLATE EXTENDS BEYOND AN END OF SAID DIELECTRIC LAYER TO FORM A TERMINAL FOR SAID PLATE, THE BUFFER LAYER MATERIAL HAVING A COEFFICIENT OF THERMAL EXPANSION COMPATIBLE WITH THAT OF THE DIELECTRIC LAYER MATERIAL, A SECOND METALLIC CAPACITOR PLATE FORMED OF FINELY DIVIDED METAL SO THAT A PORTION THEREOF EXTENDS BEYOND AN EDGE OF THE DIELECTRIC LAYER TO FORM A TERMINAL FOR THE SECOND PLATE, SAID DIELECTRIC LAYER BEING FUSED TO SAID SECOND CAPACITOR PLATE, A SECOND BUFFER LAYER OF AT LEAST PARTLY CRYSTALLIZED VITREOUS MATERIAL FUSED TO SAID SECOND CAPACITOR PLATE, AND A LAYER OF VITREOUS GLAZING MATERIAL FUSED TO SAID SECOND BUFFER LAYER AND TO SAID SUBSTRATE TO HERMETICALLY ENCLOSE THE CAPACITOR UNIT SO FORMED, THE TERMINALS OF SAID PLATES EXTENDING BEYOND THE GLAZING MATERIAL LAYER.
Claim 2
Dependent Claim
193 words
AN ELECTRICAL CAPACITOR COMPRISING A NON-CONDUCTIVE SUBSTRATE, A FIRST BUFFER LAYER OF AT LEAST PARTLY CRYSTALLIZED VITREOUS MATERIAL FUSED TO SAID SUBSTRATE, A FIRST METALLIC CAPACITOR PLATE FROMED OF FINELY DIVIDED METAL, SAID FIRST BUFFER LAYER BEING FUSED TO SAID FIRST CAPACITOR PLATE, A DIELECTRIC LAYER OF AT LEAST PARTLY CRYSTALLIZED VITREOUS MATERIAL FUSED TO SAID FIRST CAPACITOR PLATE SO THAT A PORTION OF SAID PLATE EXTENDS BEYOND AN END OF SAID DIELECTRIC LAYER TO FORM A TERMINAL FOR SAID PLATE, THE BUFFER LAYER MATERIAL HAVING A COEFFICIENT OF THERMAL EXPANSION COMPATIBLE WITH THAT OF THE DIELECTRIC LAYER MATERIAL, A SECOND METALLIC CAPACITOR PLATE FORMED OF FINELY DIVIDED METAL SO THAT A PORTION THEREOF EXTENDS BEYOND AN EDGE OF THE DIELECTRIC LAYER TO FORM A TERMINAL FOR THE SECOND PLATE, SAID DIELECTRIC LAYER BEING FUSED TO SAID SECOND CAPACITOR PLATE, A SECOND BUFFER LAYER OF AT LEAST PARTLY CRYSTALLIZED VITREOUS MATERIAL FUSED TO SAID SECOND CAPACITOR PLATE, AND A LAYER OF VITREOUS GLAZING MATERIAL FUSED TO SAID SECOND BUFFER LAYER AND TO SAID SUBSTRATE TO HERMETICALLY ENCLOSE THE CAPACITOR UNIT SO FORMED, THE TERMINALS OF SAID PLATES EXTENDING BEYOND THE GLAZING MATERIAL LAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |