US3261769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming metallic liners by electrodeposition in apertured printed circuit boards
Assignee: US Philips Corp
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Filing: 1962-08-31
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Granted: 1966-07-19
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Expires: 1982-08-31
Abstract
No abstract record available.
Inventors
- 👤 Coe Thomas
- 👤 Kerkhof Cornelis Marinus Va De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:43
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/40; H05K3/42; H05K3/423; C; C25; C25D; C25D7/00; H05K3/0085; H05K3/0088; H05K3/424; H05K2203/00; H05K2203/05; H05K2203/0548; H05K2203/0557; H05K2203/07; H05K2203/0756; H05K2203/0763; H05K3/22; H05K3/24; H05K3/241; H05K3/242; H05K3/245; H05K3/425; H05K3/428
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF FORMING METALLIC LINERS BY ELECTRODEPOSITION IN APERTURED PRINTED CIRCUIT BOARDS COMPRISING COATING THE APERTURE SURFACE OF THE CIRCUIT BOARD WITH A CONDUCTIVE COATING MATERIAL, COATING A SURFACE OF A MASKING BOARD WITH A CONDUCTIVE COATING MATERIAL, PUNCHING APERTURES THROUGH SAID MASKING BOARD SO THAT THE APERTURE OF THE CIRCUIT BOARD AND THE APERTURES OF THE MASKING BOARD ARE COAXIALLY ALIGNED WHEN THE MASKING BOARD IS JUXTAPOSED OVER THE CIRCUIT WIRING ON THE CIRCUIT BOARD, SECURING THE CIRCUIT AND MASKING BOARDS IN THE RELATION ABOVE SET FORTH ND EMERSING THE ASSEMBLY THUS OBTAINED IN AN ELECTROLYTIC BATH WITH SAID CONDUCTIVE COATING MATERIAL BEING THE CATHODE THEREOF.
Claim 2
Independent Claim
108 words
A METHOD OF FORMING METALLIC LINERS BY ELECTRODEPOSITION IN APERTURED PRINTED CIRCUIT BOARDS COMPRISING COATING THE APERTURE SURFACE OF THE CIRCUIT BOARD WITH A CONDUCTIVE COATING MATERIAL, COATING A SURFACE OF A MASKING BOARD WITH A CONDUCTIVE COATING MATERIAL, PUNCHING APERTURES THROUGH SAID MASKING BOARD SO THAT THE APERTURE OF THE CIRCUIT BOARD AND THE APERTURES OF THE MASKING BOARD ARE COAXIALLY ALIGNED WHEN THE MASKING BOARD IS JUXTAPOSED OVER THE CIRCUIT WIRING ON THE CIRCUIT BOARD, SECURING THE CIRCUIT AND MASKING BOARDS IN THE RELATION ABOVE SET FORTH ND EMERSING THE ASSEMBLY THUS OBTAINED IN AN ELECTROLYTIC BATH WITH SAID CONDUCTIVE COATING MATERIAL BEING THE CATHODE THEREOF.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |