US3079537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor
Assignee: NEC Corp
•
Filing: 1959-12-04
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Granted: 1963-02-26
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Expires: 1979-12-04
Abstract
No abstract record available.
Inventors
- 👤 Sato Ichiro
- 👤 Okamoto Eiichi
- 👤 Seki Yasuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:05
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A CAPACITOR OF THE DRY TYPE COMPRISING FIRST AND SECOND JUXTAPOSED PARTS, SAID FIRST PART COMPRISING A METAL BASE, AN ANODIC LAYER ON SAID BASE, AN INSULATING LAYER ON SAID ANODIC LAYER, A SEMI-CONDUCTOR LAYER ON SAID INSULATING LAYER, AND A METAL LAYER ON SAID SEMI-CONDUCTOR LAYER, AND SAID SECOND PART COMPRISING A METAL LEAF, A POROUS ANODIC LAYER ON SAID METAL LEAF, A LAYER OF INSULATING MATERIAL HAVING A PLURALITY OF PINHOLES ON SAID ANODIC LAYER, AND A FILM OF METAL DEPOSITED ON SAID INSULATING LAYER BY EVAPORATION, WHEREBY GRAMS OF THE METAL WILL PENETRATE THE HOLES IN SAID POROUS ANODIC LAYER AND SAID LAYER OF INSULATING MATERIAL HAVING THE PINHOLES, SAID PARTS BEING JUXTAPOSED WITH SAID LAST MENTIONED METAL FILM OF SAID SECOND PART IN CONTACT WITH SAID METAL LAYER OF SAID FIRST PART.
Claim 2
Dependent Claim
136 words
A CAPACITOR OF THE DRY TYPE COMPRISING FIRST AND SECOND JUXTAPOSED PARTS, SAID FIRST PART COMPRISING A METAL BASE, AN ANODIC LAYER ON SAID BASE, AN INSULATING LAYER ON SAID ANODIC LAYER, A SEMI-CONDUCTOR LAYER ON SAID INSULATING LAYER, AND A METAL LAYER ON SAID SEMI-CONDUCTOR LAYER, AND SAID SECOND PART COMPRISING A METAL LEAF, A POROUS ANODIC LAYER ON SAID METAL LEAF, A LAYER OF INSULATING MATERIAL HAVING A PLURALITY OF PINHOLES ON SAID ANODIC LAYER, AND A FILM OF METAL DEPOSITED ON SAID INSULATING LAYER BY EVAPORATION, WHEREBY GRAMS OF THE METAL WILL PENETRATE THE HOLES IN SAID POROUS ANODIC LAYER AND SAID LAYER OF INSULATING MATERIAL HAVING THE PINHOLES, SAID PARTS BEING JUXTAPOSED WITH SAID LAST MENTIONED METAL FILM OF SAID SECOND PART IN CONTACT WITH SAID METAL LAYER OF SAID FIRST PART.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |