US3575822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing miniaturized electric circuits
Assignee: US Philips Corp
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Filing: 1967-06-20
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Granted: 1971-04-20
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Expires: 1987-06-20
Abstract
Abstract A METHOD OF MASS PRODUCING MINIATURIZED ELECTICAL CIRCUITS PROVIDED WITH SUPPLY CONDUCTORS. A FIRST CONDUCTIVE LAYER IS DEPOSITED ON A PLATE CARRIER TO FORM AN ELECTRODE PATTERN; A SECOND CONDUCTIVE LAYER IS DEPOSITED OVER THE CARRIER AND ELECTRODE PATTERN AND ETCHED TO FORM A SUPPLY CONDUCTOR PATTERN, SUBSEQUENTLY THE CONDUCTOR PATTERN IS REINFORCED ELECTROLYTICALLY AND THEN THE CARRIER IS SEPPARATED FROM THESE PORTIONS OF SECOND LAYER THUS FORMING THE SUPPLY CONDUCTORS.
Inventors
- 👤 Pol Jean Limbourg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:34
CPC Classifications
H; H10; H10W; H10W99/00; C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1603; C23C18/1605; C23F; C23F1/00; C23F1/02; C25; C25D; C25D5/00; C25D5/02; H05; H05K; H05K3/00; H05K3/40; H05K3/4092; H05K1/00; H05K1/16; H05K1/167; H05K3/22; H05K3/24; H05K3/241; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 0
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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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |