Patent US3347724A successfully refreshed from Google Patents.
US3347724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallizing flexible substrata
Assignee: Kollmorgen Corp
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Filing: 1964-08-19
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Granted: 1967-10-17
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Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick W Schneble
- 👤 Polichette Joseph
- 👤 Edward J Leech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:03
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/181; H05K3/182; H05K3/184; C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1603; C23C18/1605; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/0366; H05K1/0373; H05K1/0393; H05K2201/00; H05K2201/02; H05K2201/0203; H05K2201/0206; H05K2201/0236; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2944; Y10T442/00; Y10T442/30; Y10T442/3382; Y10T442/3407
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD FOR FORMING MULTILAYERED PRINTED CIRCUITS WHICH COMPRISES IMPREGNATING A PLURALITY OF SEPARATE, FLEXIBLE AND FORAMINOUS INSULATING PANELS WITH A RESINOUS ADHESIVE HAVING DISPERSED THEREIN AN AGENT CATALYTIC TO THE RECEPTION OF ELECTROLESS METAL, ESTABLISHING APERTURES IN THE IMPREGNATED PANELS SO AS TO LEAVE CATALYTIC AGENT EXPOSED ON THE WALLS OF THE APERTURES, MASKING A PORTION OF THE SURFACE OF EACH IMPREGNATED PANEL TO LEAVE EXPOSED CONDUCTOR PATTERNS, DEPOSITING DUCTILE METAL ON THE EXPOSED CONDUCTOR PATTERNS AND THE WALLS OF THE APERTURES OF EACH PANEL BY CONTACTING EACH IMPREGNATED AND MASKED PANEL WITH AN ELECTROLESS METAL L DEPOSITION SOLUTION CAPABLE OF AUTOCATALYTICALLY DEPOSITING DEUCTILE METAL, STACKING AT LEAST TWO OF THE RESULTING FLEXIBLE PANELS TOGETHER, SUCH THAT THE APERTURES THEREIN ARE ALIGNED; AND SUBJECTING THE STACKED PANELS TO HEAT AND PRESSURE TO BOND THEM TOGETHER.
Claim 2
Independent Claim
136 words
A METHOD FOR FORMING MULTILAYERED PRINTED CIRCUITS WHICH COMPRISES IMPREGNATING A PLURALITY OF SEPARATE, FLEXIBLE AND FORAMINOUS INSULATING PANELS WITH A RESINOUS ADHESIVE HAVING DISPERSED THEREIN AN AGENT CATALYTIC TO THE RECEPTION OF ELECTROLESS METAL, ESTABLISHING APERTURES IN THE IMPREGNATED PANELS SO AS TO LEAVE CATALYTIC AGENT EXPOSED ON THE WALLS OF THE APERTURES, MASKING A PORTION OF THE SURFACE OF EACH IMPREGNATED PANEL TO LEAVE EXPOSED CONDUCTOR PATTERNS, DEPOSITING DUCTILE METAL ON THE EXPOSED CONDUCTOR PATTERNS AND THE WALLS OF THE APERTURES OF EACH PANEL BY CONTACTING EACH IMPREGNATED AND MASKED PANEL WITH AN ELECTROLESS METAL L DEPOSITION SOLUTION CAPABLE OF AUTOCATALYTICALLY DEPOSITING DEUCTILE METAL, STACKING AT LEAST TWO OF THE RESULTING FLEXIBLE PANELS TOGETHER, SUCH THAT THE APERTURES THEREIN ARE ALIGNED; AND SUBJECTING THE STACKED PANELS TO HEAT AND PRESSURE TO BOND THEM TOGETHER.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |