Patent DE711115C successfully refreshed from Google Patents.
US2699424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating process for producing printed circuits
Assignee: Motorola Solutions Inc
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Filing: 1949-10-07
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Granted: 1955-01-11
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Expires: 1969-10-07
Abstract
No abstract record available.
Inventors
- 👤 Nieter Temple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:38
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/108; H05K3/18; H05K3/188; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0344; H05K2203/00; H05K2203/03; H05K2203/0315; H05K2203/11; H05K2203/1142; H05K3/40; H05K3/42; H05K3/425; H05K3/426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD OF FORMING AN ELECTRIC CONDUCTOR UPON AN INSULATING BASE WHICH COMPRISES THE STEPS OF COATING THE BASE WITH A LAYER OF METALLIC SILVER, MASKING WITH A RESIST THOSE AREAS OF THE BASE ON WHICH NO CONDUCTOR IS DESIRED, LEAVING UNMASKED THE AREA ON WHICH A CONDUCTOR IS DESIRED, ELECTROPLATING COPPER ONTO THE SILVER IN THE UNMASKED AREA OF THE COATED BASE TO FORM AN ELECTRIC CONDUCTOR, REMOVING THE RESIST FROM THE BASE, AND APPLYING SODIUM HYPOCHLORITE TO THE BASE FOR CHEMICALLY CONVERTING THE UNPLATED PARTS OF THE SILVER TO A NON-CONDUCTIVE MATERIAL.
Claim 2
Independent Claim
94 words
A METHOD OF FORMING AN ELECTRIC CONDUCTOR UPON AN INSULATING BASE WHICH COMPRISES THE STEPS OF COATING THE BASE WITH A LAYER OF METALLIC SILVER, MASKING WITH A RESIST THOSE AREAS OF THE BASE ON WHICH NO CONDUCTOR IS DESIRED, LEAVING UNMASKED THE AREA ON WHICH A CONDUCTOR IS DESIRED, ELECTROPLATING COPPER ONTO THE SILVER IN THE UNMASKED AREA OF THE COATED BASE TO FORM AN ELECTRIC CONDUCTOR, REMOVING THE RESIST FROM THE BASE, AND APPLYING SODIUM HYPOCHLORITE TO THE BASE FOR CHEMICALLY CONVERTING THE UNPLATED PARTS OF THE SILVER TO A NON-CONDUCTIVE MATERIAL.
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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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |