Patent US3759803A successfully refreshed from Google Patents.
US3759803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline nickel plating solutions
Assignee: Kewanee Oil Co
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Filing: 1971-07-22
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Granted: 1973-09-18
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Expires: 1991-07-22
Abstract
Abstract ADDITION AGENTS FOR USE IN ALKALINE NICKEL PLATING BATHS WHICH PRODUCE A BRIGHTER MORE DUCTILE NICKEL ELECTROPLATE. THE ADDITION AGENTS ARE OF THE GENERAL FORMULA: R-C*C-R1, R6-C(-R7)=C(-R8)-CH2-OH, AND R9-CH=CH-C*C-R10 TYPICAL COMPOUNDS INCLUDE 2-CHLOROALLYL ALCOHOL; 1ETHYNYL-1-CYCLOHEXANOL; 2-BUTYNE-U,4-DIOL; 2,4-HEXADIYNE1,6-DIOL AND 2-METHOXY-1-BUTENE-3-YNE.
Inventors
- 👤 Rose A Du
- 👤 R Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:43
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12; C25D3/14; C25D3/16
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |