US2834723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electroplating printed circuits
Assignee: Northern Engraving & Manufacturing Co
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Filing: 1953-12-31
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Granted: 1958-05-13
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Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 James C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/241; H05K3/242; C; C25; C25D; C25D5/00; C25D5/02; H05K2203/00; H05K2203/01; H05K2203/0191; H05K2203/05; H05K2203/0502; H05K2203/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF ELECTRO-PLATING THE CONDUCTING ELEMENTS OF A MULTI-PART PRINTED CIRCUIT FORMED OF THE FACE OF A NON-CONDUCTING BASE, COMPRISING THE STEPS OF: MASKING A FRAGMENTARY PORTION OF EACH CONDUCTING ELEMENT WHILE LEAVING A FRAGMENT OF EACH ELEMENT EXPOSED ALONG THE MARGIN OF THE MASKED PORTION; COVERING THE ENTIRE FACE WITH A REMOVABLE ELECTRICALLY CONDUCTING COATING; APPLYING AN ELECTRICALLY NON-CONDUCTING COATING OVER THE ELECTRICALLY CONDUCTING COATING; REMOVING THE FIRST MASK AND THE COATINGS THEREON TO EXPOSE THE MASKED PORTION AND DEFINE A UNITARY CONDUCTING AREA INCLUDING THE ELECTRICALLY CONDUCTING COATING AND THE CONDUCTING ELEMENTS OF THE PRINTED CIRCUIT; ELECTRO-PLATING ONTO THE FACE USING THE SAID CONDUCTING AREA AS ONE ELECTRODE; AND REMOVING THE REMAINING PORTIONS OF THE COATINGS TO RESTORE IN ORGIINAL CIRCUIT CONFIGURATION.
Claim 2
Independent Claim
125 words
THE METHOD OF ELECTRO-PLATING THE CONDUCTING ELEMENTS OF A MULTI-PART PRINTED CIRCUIT FORMED OF THE FACE OF A NON-CONDUCTING BASE, COMPRISING THE STEPS OF: MASKING A FRAGMENTARY PORTION OF EACH CONDUCTING ELEMENT WHILE LEAVING A FRAGMENT OF EACH ELEMENT EXPOSED ALONG THE MARGIN OF THE MASKED PORTION; COVERING THE ENTIRE FACE WITH A REMOVABLE ELECTRICALLY CONDUCTING COATING; APPLYING AN ELECTRICALLY NON-CONDUCTING COATING OVER THE ELECTRICALLY CONDUCTING COATING; REMOVING THE FIRST MASK AND THE COATINGS THEREON TO EXPOSE THE MASKED PORTION AND DEFINE A UNITARY CONDUCTING AREA INCLUDING THE ELECTRICALLY CONDUCTING COATING AND THE CONDUCTING ELEMENTS OF THE PRINTED CIRCUIT; ELECTRO-PLATING ONTO THE FACE USING THE SAID CONDUCTING AREA AS ONE ELECTRODE; AND REMOVING THE REMAINING PORTIONS OF THE COATINGS TO RESTORE IN ORGIINAL CIRCUIT CONFIGURATION.
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) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |