US3585010A
Expired / Lapsed
US
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Printed circuit board and method of making same
Assignee: Clevite Corp
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Filing: 1968-10-03
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Granted: 1971-06-15
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Expires: 1988-10-03
Abstract
Abstract THIS INVENTION IS DIRECTED TO THE CONDUCTING ELEMENT OF A PRINTED CIRCUIT COMPRISING A COPPER FOIL AND A METALLIC BARRIER LAYER HAVING UTILITY IN SUBSTANTIALLY REDUCING THE STAINING OF PRINTED CIRCUIT BOARDS, SAID METALLIC BARRIER LAYER IS A THIN DEPOSIT ON THE COPPER FOIL OF A METAL SELECTED FROM THE GROUP CONSISTING OF ZINC, INDIUM, NICKEL, TIN, COBALT, BRASS, AND BRONZE.
Inventors
- 👤 Betty M Luce
- 👤 Betty L Berdan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:02
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/382; H05K3/384; H01; H01B; H01B1/00; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2203/00; H05K2203/03; H05K2203/0307; H05K2203/07; H05K2203/0703; H05K2203/0723; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10T; Y10T428/00; Y10T428/12; Y10T428/12444; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/1266; Y10T428/12667; Y10T428/12681; Y10T428/12708; Y10T428/12715; Y10T428/12771; Y10T428/12778; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |