US3102808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for selectively stripping electroplated metals from surfaces
Assignee: ELTEX RES CORP
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Filing: 1959-01-29
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Granted: 1963-09-03
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Expires: 1979-01-29
Abstract
No abstract record available.
Inventors
- 👤 Weisberg Mark
- 👤 Florence P Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:45
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A COMPOSITION FOR SELECTIVELY DISSOLVING NICKEL IN THE PRESENCE OF A METAL ON WHICH THE SAID NICKEL HAS BEEN ELECTRODEPOSITED, CHARACTERIZED BY ITS CONTAINING THE COMBINATION OF A NITRO SUBSTITUTED ORGANIC COMPOUND AND AN AMINE, SAID COMBINATION BEING IN THE LIQUID PHASE AND CONTAIINING AT LEAST ABOUT 0.01 PERCENT BY WEIGHT OF SAID ACTIVE COMBINATION, AND A SMALL AMOUNT OF A SULFUR COMPOUNT WHICH, IN AQUEOUS SOLUTION WILL YIELD SULFUR IONS IN A -2 OXIDATION STATE, SAID SLUFUR COMPOUND BEING PRESENT IN SMALL AMOUNT AT LEAST SUFFICIENT TO ACCELERATE STRIPPING OF SAID NICKEL UP TO ABOUT 5 PERCENT OF SAID ACTIVE COMBINATION.
Claim 2
Dependent Claim
102 words
A COMPOSITION FOR SELECTIVELY DISSOLVING NICKEL IN THE PRESENCE OF A METAL ON WHICH THE SAID NICKEL HAS BEEN ELECTRODEPOSITED, CHARACTERIZED BY ITS CONTAINING THE COMBINATION OF A NITRO SUBSTITUTED ORGANIC COMPOUND AND AN AMINE, SAID COMBINATION BEING IN THE LIQUID PHASE AND CONTAIINING AT LEAST ABOUT 0.01 PERCENT BY WEIGHT OF SAID ACTIVE COMBINATION, AND A SMALL AMOUNT OF A SULFUR COMPOUNT WHICH, IN AQUEOUS SOLUTION WILL YIELD SULFUR IONS IN A -2 OXIDATION STATE, SAID SLUFUR COMPOUND BEING PRESENT IN SMALL AMOUNT AT LEAST SUFFICIENT TO ACCELERATE STRIPPING OF SAID NICKEL UP TO ABOUT 5 PERCENT OF SAID ACTIVE COMBINATION.
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |