US3259557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electrodepositing aluminum
Assignee: National Steel Corp
•
Filing: 1962-03-02
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Granted: 1966-07-05
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Expires: 1982-03-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Smith
- 👤 Michael G Vucich
- 👤 Lowell W Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:05
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF ELECTRODEPOSITING ALUMINUM ON AN IRONCONTAINING METALLIC SUBSTRATE COMPRISING INTIMATELY CONTACTING THE SUBSTRATE WITH A BODY OF NONAQUEOUS FUSED ELECTROLYTE FOR ELECTRODEPOSITING ALUMINUM, THE ELECTROTYLE CONTAINING DISSOLVED IRON-CONTAINING MATERIAL FORMED AT LEAST IN PART IN SITU FROM THE SAID SUBSTRATE, IT IS INTIDEPOSITING ALUMINUM ON THE SUBSTRATE WHILE IT IS INTIMATELY CONTACTED WITH THE BODY OF ELECTOLYTE, AND CONTINUOUSLY MAINTAINING THE SAID IRON-CONTAINING MATERIAL DISSOLVED IN THE ELECTROLYTE IN A CONCENTRATION RESULTING IN NOT LESS THAN ABOUT 0.001% AND NOT MORE THAN ABOUT 0.02% BY WEIGHT OF IRON IN SOLUTION IN THE ELECTROLYTE WHILE THE ALUMINUM IS BEING ELECTRODEPOSITE.
Claim 2
Independent Claim
101 words
A METHOD OF ELECTRODEPOSITING ALUMINUM ON AN IRONCONTAINING METALLIC SUBSTRATE COMPRISING INTIMATELY CONTACTING THE SUBSTRATE WITH A BODY OF NONAQUEOUS FUSED ELECTROLYTE FOR ELECTRODEPOSITING ALUMINUM, THE ELECTROTYLE CONTAINING DISSOLVED IRON-CONTAINING MATERIAL FORMED AT LEAST IN PART IN SITU FROM THE SAID SUBSTRATE, IT IS INTIDEPOSITING ALUMINUM ON THE SUBSTRATE WHILE IT IS INTIMATELY CONTACTED WITH THE BODY OF ELECTOLYTE, AND CONTINUOUSLY MAINTAINING THE SAID IRON-CONTAINING MATERIAL DISSOLVED IN THE ELECTROLYTE IN A CONCENTRATION RESULTING IN NOT LESS THAN ABOUT 0.001% AND NOT MORE THAN ABOUT 0.02% BY WEIGHT OF IRON IN SOLUTION IN THE ELECTROLYTE WHILE THE ALUMINUM IS BEING ELECTRODEPOSITE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |