Patent US3704156A successfully refreshed from Google Patents.
US3704156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst solution for electroless plating on nonconductors
Assignee: EIDP Inc
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Filing: 1970-07-13
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Granted: 1972-11-28
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Expires: 1990-07-13
Abstract
Abstract A CATALYST SOLUTION FOR USE IN ELECTROLESS PLATING ON NONCONDUCTORS IS PREPARED BY DISSOLVING A PALLADIUM SALT IN A SOLUTION OF A COMPLEXING ACID WHICH FORMS MONODENTATE LIGANDS. THE SOLUTION CAN BE PREPARED USING A PALLADIUM SALT AND A COMPLEXING ACID SUCH AS ACETIC ACID, MONOCHLORACETIC ACID, BROMOACETIC ACID, DICHLORACETIC ACID, TRICHLOROACETIC ACID, GLYCOLLIC ACID, PHOSPHORIC ACID AND 1,3,5-PEBTANETRICARBOXYLIC ACID.
Inventors
- 👤 Edward F Foley Jr
- 👤 William A Zatorsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:31
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/28; C23C18/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |