US2940018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed electric circuits
Assignee: General American Transportation Corp
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Filing: 1957-04-10
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Granted: 1960-06-07
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Expires: 1977-04-10
Abstract
No abstract record available.
Inventors
- 👤 Warren G Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:15
CPC Classifications
H; H01; H01G; H01G2/00; H01F; H01F17/00; H01F17/0006; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/181
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PRINTED ELECTRIC CIRCUIT COMPRISING AN INSULATING BASE, AND A COMPOSITE ELECTRIC CIRCUIT ELEMENT CARRIED BY THE SURFACE OF SAID BASE AND INCLUDING INNER AND OUTER ELECTRICALLY CONDUCTING METAL LAYERS DISPOSED IN METAL-TOMETAL CONTACT WITH EACH OTHER, SAID INNER LAYER BEING DIRECTLY AND INTIMATELY ADHERED TO THE SURFACE OF SAID BASE AND CONSISTING ESSENTIALLY OF A NICKEL-PHOSPHORUS ALLOY, SAID ALLOY CONTAINING BY WEIGHT ABOUT 89% TO 95% NICKEL
Claim 2
Dependent Claim
68 words
A PRINTED ELECTRIC CIRCUIT COMPRISING AN INSULATING BASE, AND A COMPOSITE ELECTRIC CIRCUIT ELEMENT CARRIED BY THE SURFACE OF SAID BASE AND INCLUDING INNER AND OUTER ELECTRICALLY CONDUCTING METAL LAYERS DISPOSED IN METAL-TOMETAL CONTACT WITH EACH OTHER, SAID INNER LAYER BEING DIRECTLY AND INTIMATELY ADHERED TO THE SURFACE OF SAID BASE AND CONSISTING ESSENTIALLY OF A NICKEL-PHOSPHORUS ALLOY, SAID ALLOY CONTAINING BY WEIGHT ABOUT 89% TO 95% NICKEL
References Cited (Backward Citations)
US2474988A
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US2532283A
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US2662957A
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US2690403A
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US2758074A
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US2834723A
Cited
US2848359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |