US2832729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of iron-zinc alloys
Assignee: Rockwell Spring and Axle Co
•
Filing: 1954-08-02
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Granted: 1958-04-29
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Expires: 1974-08-02
Abstract
No abstract record available.
Inventors
- 👤 William H Safranek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:07
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/562; C25D3/565
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE PROCESS OF ELECTRODEPOSING A LEVELING, DUCTILE, IRON-ZINC-ALLOY PLATE WHICH COMPRISES ELECTROLYZING AN AQUEOUS ACID SOLUTION CONTAINING A FERROUS COMPOUND WITH FERROUS ION IN A CONCENTRATION OF 20 TO 100 G./L., AND A ZINC COMPOUND WITH ZINC ION IN A ZINC-FERROUS RATIO OF FROM 0.004 TO 0.05.
Claim 2
Dependent Claim
47 words
THE PROCESS OF ELECTRODEPOSING A LEVELING, DUCTILE, IRON-ZINC-ALLOY PLATE WHICH COMPRISES ELECTROLYZING AN AQUEOUS ACID SOLUTION CONTAINING A FERROUS COMPOUND WITH FERROUS ION IN A CONCENTRATION OF 20 TO 100 G./L., AND A ZINC COMPOUND WITH ZINC ION IN A ZINC-FERROUS RATIO OF FROM 0.004 TO 0.05.
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) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |