Patent US3189797A successfully refreshed from Google Patents.
US3189797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid electrolytic condenser
Assignee: NEC Corp
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Filing: 1960-04-20
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Granted: 1965-06-15
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Expires: 1980-04-20
Abstract
No abstract record available.
Inventors
- 👤 Okamoto Eiichi
- 👤 Suzuki Seizo
- 👤 Kurihara Takavuki
- 👤 Sasaki Yozo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:20
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/008; H01G9/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A CATHODE STRUCTURE FOR A SOLID ELECTROYLTIC CAPACITOR; HAVING A METAL BASE, AN OXIDE COATING ON THE BASE, A SEMICONDUCTOR COATING ON THE OXIDE COATING, AND AN ELECTRICALLY CONDUCTING LAYER ON THE SEMICONDUCTOR COATING; COMPRISING A CATHODE LEAD WIRE, THE MAJORITY OF WHICH IS LIGHTLY WRAPPED IN A PLURALITY OF TURNS IN THE FORM OF A RELATIVELY OPEN WOULD HELIX ABOUT SAID ELECTRICALLY CONDUCTING LAYER, AND A METAL OVER-LAYER HAVING A MAXIMUM THICKNESS OF 1.2 MM. ON SAID ELECTRICALLY CONDUCTING LAYER AND SAID WIRE.
Claim 2
Dependent Claim
84 words
A CATHODE STRUCTURE FOR A SOLID ELECTROYLTIC CAPACITOR; HAVING A METAL BASE, AN OXIDE COATING ON THE BASE, A SEMICONDUCTOR COATING ON THE OXIDE COATING, AND AN ELECTRICALLY CONDUCTING LAYER ON THE SEMICONDUCTOR COATING; COMPRISING A CATHODE LEAD WIRE, THE MAJORITY OF WHICH IS LIGHTLY WRAPPED IN A PLURALITY OF TURNS IN THE FORM OF A RELATIVELY OPEN WOULD HELIX ABOUT SAID ELECTRICALLY CONDUCTING LAYER, AND A METAL OVER-LAYER HAVING A MAXIMUM THICKNESS OF 1.2 MM. ON SAID ELECTRICALLY CONDUCTING LAYER AND SAID WIRE.
References Cited (Backward Citations)
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US2005279A
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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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |