US2507400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electroplating with iron and cobalt
Assignee: SK Wellman Corp
•
Filing: 1943-08-02
•
Granted: 1950-05-09
•
Expires: 1963-08-02
Abstract
No abstract record available.
Inventors
- 👤 Marinis Frank De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:22
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A METHOD OF PROTECTIVELY COATING FERROUS AND BRONZE BODIES WHICH COMPRISES THE STEPS OF PROVIDING A WATER SOLUTION OF FERROUS CHLORIDE IN A CONCENTRATION WITHIN THE RANGE OF 250 TO 400 GRAMS PER LITER OF WATER, COBALT CHLORIDE IN A CONCENTRATION SUCH THT THE RATIO BY WEIGHT OF THE IRON TO THE COBALT IN THE SOLUTION IS FROM 80 TO 99.75 PARTS OF IRON TO 20 TO 0.25 PARTS OF COBALT, AND CALCIUM CHLORIDE IN A CONCENTRATION OF 100 TO 200 GRAMS PER LITER; SUSPENDING IN THE SAID SOLUTION AS CATHODE SAID BODIES TO BE COATED, PASSING AN ELECTRIC CURRENT THROUGH THE SOLUTION WITH A DENSITY OF FROM 10 TO 490 AMPERES PER SQUARE FOOT TO FORM ON THE BODIES CONTINUOUS COATINGS COMPOSED OF IRON AND CCOBALT; MEANWHILE MAINTAINING THE PH OF THE SOLUTION WITHIN THE RANGE OF 1.2 TO 2.4 AND THE TEMPERATURE OF THE SOLUTION BETWEEN ABOUT 70*C. AND 95*C.; AND REPLACING IN THE SOLUTION METALS PLATED OUT THEREFROM TO MAINTAIN THE CONCENTRATION OF THE SOLUTION.
Claim 2
Independent Claim
168 words
A METHOD OF PROTECTIVELY COATING FERROUS AND BRONZE BODIES WHICH COMPRISES THE STEPS OF PROVIDING A WATER SOLUTION OF FERROUS CHLORIDE IN A CONCENTRATION WITHIN THE RANGE OF 250 TO 400 GRAMS PER LITER OF WATER, COBALT CHLORIDE IN A CONCENTRATION SUCH THT THE RATIO BY WEIGHT OF THE IRON TO THE COBALT IN THE SOLUTION IS FROM 80 TO 99.75 PARTS OF IRON TO 20 TO 0.25 PARTS OF COBALT, AND CALCIUM CHLORIDE IN A CONCENTRATION OF 100 TO 200 GRAMS PER LITER; SUSPENDING IN THE SAID SOLUTION AS CATHODE SAID BODIES TO BE COATED, PASSING AN ELECTRIC CURRENT THROUGH THE SOLUTION WITH A DENSITY OF FROM 10 TO 490 AMPERES PER SQUARE FOOT TO FORM ON THE BODIES CONTINUOUS COATINGS COMPOSED OF IRON AND CCOBALT; MEANWHILE MAINTAINING THE PH OF THE SOLUTION WITHIN THE RANGE OF 1.2 TO 2.4 AND THE TEMPERATURE OF THE SOLUTION BETWEEN ABOUT 70*C. AND 95*C.; AND REPLACING IN THE SOLUTION METALS PLATED OUT THEREFROM TO MAINTAIN THE CONCENTRATION OF THE SOLUTION.
References Cited (Backward Citations)
US992951A
Cited
US1544579A
Cited
US1920964A
Cited
US1970548A
Cited
US2036667A
Cited
US2131427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |