Patent US2966429A successfully refreshed from Google Patents.
US2966429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for making printed circuits
Assignee: General Electric Co
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Filing: 1956-08-31
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Granted: 1960-12-27
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Expires: 1976-08-31
Abstract
No abstract record available.
Inventors
- 👤 Darrel Bernard
- 👤 Stanislaw J Szpak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:10
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; G03G17/00; H; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/061; H05K3/062; H05K3/065; H05K3/10; H05K3/108; H05K2203/00; H05K2203/05; H05K2203/0502; H05K2203/0517; H05K3/12; H05K3/1216; Y; Y10; Y10S; Y10S101/00; Y10S101/37; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
THE METHOD OF MAKING A PRINTED CIRCIUT COMPRISING THE STEPS OF PROVIDING AN ELECTRICALLY INSULATING MEMBER HAVING AN ELECTRICALLY CONDUCTIVE SURFACE FORMED TEREON, SUPPLYING AN ELECTRIC POTENTIAL TO SAID CONDUCTIVE SURFACE, COVERING ALL PORTIONS OF SAID CONDUCTIVE SURFACE EXCEPTING PORTIONS IN A PREDETERMINED CONFIGURATION WITH AN ELECTRICALLY NETURAL MASK, APPLYING A FINELY-DIVIDED POWDER FORMED FROM MATERIAL SUSCEPTIBLE TO BEING CHARGED IN AN ELECTRIC FIELD OVER THE PARTICALY COVERED CONDUCTIVE SURFACE THEREBY PRODUCING A POWDER DESIGN THAT ADHERES TO THE UNCOVERED PORTIONS OF THE SURFACE, REMOVING THE MASK TO LEAVE A POWDER DESIGN IN SAID PREDETERMINED CONFIGURATION OVER THE SURFACE, AFFIXING THE POWDER DESIGN TO THE CONDUCTIVE SURFACE TO FORM A PROTECTIVE COATING OVER PREDETERMINED AREAS THEREOF, COATING THE UNRECOVERED PORTIONS OF THE CONDUCTIVE SURFACE CHEMICALLY DIFFERENTIATING THE PREDETERMINED CIRCUIT CONFIGURATION FROM THE AREAS ON THE INSULATING MEMBER WHERE NO CONDUCTIVE CIRCUIT CONFIGURATION IS DESIRED, AND SUBSEQUENTLY REMOVING THE POWDER DESIGN TO THEREBY FORM THE DESIRED PRINTED CIRCUIT.
Claim 2
Independent Claim
157 words
THE METHOD OF MAKING A PRINTED CIRCIUT COMPRISING THE STEPS OF PROVIDING AN ELECTRICALLY INSULATING MEMBER HAVING AN ELECTRICALLY CONDUCTIVE SURFACE FORMED TEREON, SUPPLYING AN ELECTRIC POTENTIAL TO SAID CONDUCTIVE SURFACE, COVERING ALL PORTIONS OF SAID CONDUCTIVE SURFACE EXCEPTING PORTIONS IN A PREDETERMINED CONFIGURATION WITH AN ELECTRICALLY NETURAL MASK, APPLYING A FINELY-DIVIDED POWDER FORMED FROM MATERIAL SUSCEPTIBLE TO BEING CHARGED IN AN ELECTRIC FIELD OVER THE PARTICALY COVERED CONDUCTIVE SURFACE THEREBY PRODUCING A POWDER DESIGN THAT ADHERES TO THE UNCOVERED PORTIONS OF THE SURFACE, REMOVING THE MASK TO LEAVE A POWDER DESIGN IN SAID PREDETERMINED CONFIGURATION OVER THE SURFACE, AFFIXING THE POWDER DESIGN TO THE CONDUCTIVE SURFACE TO FORM A PROTECTIVE COATING OVER PREDETERMINED AREAS THEREOF, COATING THE UNRECOVERED PORTIONS OF THE CONDUCTIVE SURFACE CHEMICALLY DIFFERENTIATING THE PREDETERMINED CIRCUIT CONFIGURATION FROM THE AREAS ON THE INSULATING MEMBER WHERE NO CONDUCTIVE CIRCUIT CONFIGURATION IS DESIRED, AND SUBSEQUENTLY REMOVING THE POWDER DESIGN TO THEREBY FORM THE DESIRED PRINTED CIRCUIT.
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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) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |