US3738849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical plating solutions
Assignee: EIDP Inc
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Filing: 1971-12-22
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Granted: 1973-06-12
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Expires: 1991-12-22
Abstract
Abstract AN AQUEOUS CHEMICAL PLATING SOLUTION FOR DEPOSITING A METAL SUCH AS NICKEL, COBALT, COPPER OR IRON ON A CATALYTIC SUBSTRATE, USING A REDUCING AGENT SUCH AS FORMALDEHYDE, SODIUM HYPOPHOSPHITE OR A BORANE, PARTICULARLY AN ALKALI METAL BOROHYDRIDE, IS STABILIZED AGAINST DECOMPOSITION BY CONTAINING THEREIN AN ALKALI METAL CYANOBOROHYDRIDE.
Inventors
- 👤 H Bellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:44
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/52
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |