US3672937A
Expired / Lapsed
US
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Process for the non-electrolytic metallizing of non-conductors
Assignee: Individual
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Filing: 1970-02-04
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Granted: 1972-06-27
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Expires: 1990-02-04
Abstract
Abstract IMPROVED PROCESS FOR APPLYING ADHERENT METAL COATINGS TO NON-CONDUCTORS BY THE NON-ELECTROLYTIC DEPOSITION OF AN ELECTRIC CONDUCTIVE METAL LAYER FROM AN AQUEOUS METAL SALT SOLUTION CONTAINING A REDUCING AGENT AND A METAL FOR CATALYZING THE DEPOSITION OF THE METAL FROM THE SALT SOLUTION WHEREIN THE NON-CONDUCTOR TO BE METALLIZED HAS INCORPORATED THEREIN A FINELY DIVIDED FILLER HAVING FUNCTIONAL GROUPS CAPABLE OF CHEMICALLY BINDING THE CATALYTIC METAL AND OF IMPARTING THE DEGREE OF ROUGHNESS TO THE NON-CONDUCTOR SURFACE REQUIRED FOR THE METALLIZATION.
Inventors
- 👤 Gottfried Kallrath
- 👤 Helmut Knorre
- 👤 Eugen Meyer-Simon
- 👤 Hanns Biegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:19
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2053; C23C18/206; C23C18/1601; C23C18/1633; C23C18/1635; C23C18/1639; C23C18/1641; C23C18/2073; C23C18/208; C23C18/2086; C23C18/22; C23C18/24; C23C18/28; C23C18/30
Claims Analysis
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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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |