Patent US3960622A successfully refreshed from Google Patents.
US3960622A
Expired / Lapsed
US
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Method of making strip-shaped multiple conductor
Assignee: Rio Tinto Switzerland AG
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Filing: 1973-06-14
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Granted: 1976-06-01
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Expires: 1993-06-14
Abstract
Abstract Method of making a strip-shaped multiple electric conductor, comprising the steps of, providing a strip of electrically conducting material, applying a first layer of insulating material to one wide side of the strip and a second layer of insulating material to the other wide side of the strip, providing in the first layer along the strip at least one groove penetrating so far as to expose the conducting material, removing the exposed conducting material as far as the second layer, so as to form at least one longitudinal cavity in the strip, and filling the cavity and the groove with an insulating material.
Inventors
- 👤 Erich Hofling
- 👤 Hanspeter Breu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:38
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/08; H01B13/00; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/07; H05K2203/00; H05K2203/01; H05K2203/0195; H05K2203/02; H05K2203/0228; H05K2203/15; H05K2203/1545; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2607825A
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US3313013A
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US3380863A
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US3580737A
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US3607474A
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US3536545A
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US3706840A
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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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |