Patent US3795591A successfully refreshed from Google Patents.
US3795591A
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Electrodeposition of bright nickel iron deposits employing a compound containing a sulfide and a sulfonate
Assignee: Oxy Metal Finishing Corp
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Filing: 1972-07-03
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Granted: 1974-03-05
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Expires: 1992-07-03
Abstract
Abstract AN AQUEOUS BATH SUITABLE FOR THE ELECTRODEPOSITION OF A BRIGHT IRON NICKEL ELECTRODEPOSIT ONTO A SUBSTRATE SUSCEPTIBLE TO CORROSION COMPRISING IRONS IONS, NICKEL IONS, A BATH SOLUBLE PRIMARY NICKEL BRIGHTENER, AN EFFECTIVE AMOUNT OF A BATH SOLUBLE COMPLEXING AGENT CONTAINING AT LEAST TWO COMPLEXING GROUPS, SAID GROUPS BEING INDEPENENTLY SELECTED FROM THE GROUP CONSISTING OF CARBOXY AND HYDROXY, PROVIDED AT LAST ONE GROUP IS A CARBOXY GROUP; THE BATH HAVING A PH FROM 2.5 TO ABOUT 5.5 AND AN ION OF THE FORMULA: -O3S-R-S-A WHEREIN A MAY BE HYDROGEN, -R1-SO3-, -S-R2-SO3-OR R3; R,R1 OR R2 MAY BE A SATURATED ALKYLENE, ARYLENE, OR ARALKYLENE; AND R3 MAY BE ALKYL, ARYL OR ARALKYL.
Inventors
- 👤 R Clauss
- 👤 R Tremmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:35
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/562
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |