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US3149398A
Expired / Lapsed
US
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Silicon dioxide solid capacitor
Assignee: Sprague Electric Co
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Filing: 1961-08-10
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Granted: 1964-09-22
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Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 John L Sprague
- 👤 Amico John F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:03
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/228; H01G4/242; H01G4/245; H01G2/00; H01G2/22; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF MAKING A CAPACITOR HAVING A DIELECTRIC FILM OF SILICON DIOXIDE ON A SUBSTRATE STRIP WHICH COMPRISES THE STEPS OF HEATING A SUBSTRATE STRIP OF MATERIAL IN AN ANTMOSPHERE OF SILICON TETRACHLORIDE TO DISSOCIATE THE SILICON TETRACHLORIDE, DEPOSITING A LAYER OF POLYXALINE SILICON ON THE SUBSTRATE, SUBSEQUENTLY OXIDIZING THE DEPOSITED SILICON TO SLILICON DIOXIDE, APPLYING METAL LAYERS TO THE COATED STRIP TO PROVIDE ELECTRODES, AND APPLYING LEAD ATTACHMENTS TO THE ELECTRODES.
Claim 2
Independent Claim
73 words
THE METHOD OF MAKING A CAPACITOR HAVING A DIELECTRIC FILM OF SILICON DIOXIDE ON A SUBSTRATE STRIP WHICH COMPRISES THE STEPS OF HEATING A SUBSTRATE STRIP OF MATERIAL IN AN ANTMOSPHERE OF SILICON TETRACHLORIDE TO DISSOCIATE THE SILICON TETRACHLORIDE, DEPOSITING A LAYER OF POLYXALINE SILICON ON THE SUBSTRATE, SUBSEQUENTLY OXIDIZING THE DEPOSITED SILICON TO SLILICON DIOXIDE, APPLYING METAL LAYERS TO THE COATED STRIP TO PROVIDE ELECTRODES, AND APPLYING LEAD ATTACHMENTS TO THE ELECTRODES.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |