US3300328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroless plating of gold
Assignee: Clevite Industries Inc
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Filing: 1963-11-12
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Granted: 1967-01-24
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Betty M Luce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:29
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/50; G06F7/505; G06F7/509; G06F7/5095; C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/42; C23C18/44
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
85 words
AN ELECTROLESS GOLD PLATING BATH CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF A COMPLEXING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL SULPHITES, AMMONIUM SULPHITE, ALKALI METAL META-BISULPHITES AND AMMONIUM META-BISULPHITE, A WATER SOLUBLE SOURCE OF GOLD IONS, A REDUCING AGENT SELECTED FROM THE GROUP CONSISTING OF HYDRAZINE, ALKYL HYDRAZINES IN WHICH THE ALKYL GROUP CONTAINS FROM 1 TO 3 CARBON ATOMS, HYDROXYLAMINE, AND ALKYL HYDROXYLAMINES IN WHICH THE ALKYL GROUP CONTAINS FROM 1 TO 3 CARBON ATOMS, AND A CYCLOALIPHATIC AMINE STABILIZING AGENT.
Claim 2
Dependent Claim
85 words
AN ELECTROLESS GOLD PLATING BATH CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF A COMPLEXING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL SULPHITES, AMMONIUM SULPHITE, ALKALI METAL META-BISULPHITES AND AMMONIUM META-BISULPHITE, A WATER SOLUBLE SOURCE OF GOLD IONS, A REDUCING AGENT SELECTED FROM THE GROUP CONSISTING OF HYDRAZINE, ALKYL HYDRAZINES IN WHICH THE ALKYL GROUP CONTAINS FROM 1 TO 3 CARBON ATOMS, HYDROXYLAMINE, AND ALKYL HYDROXYLAMINES IN WHICH THE ALKYL GROUP CONTAINS FROM 1 TO 3 CARBON ATOMS, AND A CYCLOALIPHATIC AMINE STABILIZING AGENT.
Claim 3
Dependent Claim
55 words
THE PROCESS OF AUTOCATALYTICALLY PLATING GOLD ON A NON-METALLIC SUBSTRATE WHICH COMPRISES SENSITIZING SAID SUBSTRATE BY DEPOSITING A FILM OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, COPPER, SILVER, RHODIUM, GOLD, PLATINUM, AND PALLADIUM ON SAID NONMETALLIC SUBSTRATE, AND THEREAFTER CONTACTING THE SENSITIZED NON-METAL SUBSTRATE WITH A SOLUTION ACCORDING TO CLAIM 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |