US2846343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Product and method for effecting a cold chemical oxidation of aluminum and its alloys
Assignee: Individual
•
Filing: 1955-09-21
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Granted: 1958-08-05
•
Expires: 1975-09-21
Abstract
No abstract record available.
Inventors
- 👤 Walter A Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:51
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/48; C23C22/56
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
57 words
A SOLUTION COMPRISING A WATER SOLVENT, A CUPRIC SALT, A COPPER BLACKENING AGENT SELECTED FROM THE GROUP ACID COMPATIBLE WITH THE OTHER ELEMENTS OF THE SOLUTION AS ACID COMPATIBLE WITH THE OTHER ELEMENTS OF THE SOLUTION AS AN ELECTROLYTIC AGENT AND CAPABLE OF DISSOLVING THE SURFACE S OXIDE OF THE SURFACE TO BE COATED WITH THE SOLUTION.
Claim 2
Dependent Claim
57 words
A SOLUTION COMPRISING A WATER SOLVENT, A CUPRIC SALT, A COPPER BLACKENING AGENT SELECTED FROM THE GROUP ACID COMPATIBLE WITH THE OTHER ELEMENTS OF THE SOLUTION AS ACID COMPATIBLE WITH THE OTHER ELEMENTS OF THE SOLUTION AS AN ELECTROLYTIC AGENT AND CAPABLE OF DISSOLVING THE SURFACE S OXIDE OF THE SURFACE TO BE COATED WITH THE SOLUTION.
Claim 3
Independent Claim
78 words
A METHOD FOR EFFECTING A COLD CHEMICAL OXIDATION OF ALUMINUM AND ITS ALLOYS COMPRISING COATING THE METALLIC SURFACE WITH CUPRIC CHLORIDE, FERRIC CHLORIDE, AND A COPPER BLACKENING AGENT SELECTED FROM THE GROUP CONSISTING OF SELENIUM AND TELLURIUM IN AN ACIDIC SOLUTION COMPRISING WATER AND AND AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF ISOPROPYL ALCOHOL AND METHANOL TO EFFECT A UNION BETWEEN THE ALUMINUM SURFACE AND BLACKENED COPPER FOR PRODUCING ALUMINUM HAVING A SURFACE WITH A BLACK COLOR.
Claim 4
Independent Claim
78 words
A METHOD FOR EFFECTING A COLD CHEMICAL OXIDATION OF ALUMINUM AND ITS ALLOYS COMPRISING COATING THE METALLIC SURFACE WITH CUPRIC CHLORIDE, FERRIC CHLORIDE, AND A COPPER BLACKENING AGENT SELECTED FROM THE GROUP CONSISTING OF SELENIUM AND TELLURIUM IN AN ACIDIC SOLUTION COMPRISING WATER AND AND AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF ISOPROPYL ALCOHOL AND METHANOL TO EFFECT A UNION BETWEEN THE ALUMINUM SURFACE AND BLACKENED COPPER FOR PRODUCING ALUMINUM HAVING A SURFACE WITH A BLACK COLOR.
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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |