US2898250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing aluminum surface coatings
Assignee: Turco Products Inc
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Filing: 1957-03-25
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Granted: 1959-08-04
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Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 George H Pimbley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:58
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/40; C23C22/44; C23C22/34; C23C22/37; C23C22/82; C23C22/83
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
51 words
A PROCESS FOR PRODUCING A SUBSTANTIALLY COLORLESS CHEMICALLY BONDED COATING ON AN ALUMINUM ARTICLE, WHICH COMPRISES TREATING SAID ARTICLE IN AN AQUEOUS SOLUTION CONTAINING A SMALL EFFECTIVE AMOUNT OF A SOLUBLE COMPOUND CONTAINING UNSATURATED TETRAVALENT CARBON LINKED TO NITROGEN AND TO AN ELEMENT OF THE GROUP CONSISTING OF OXYGEN AND SULFUR.
Claim 2
Dependent Claim
51 words
A PROCESS FOR PRODUCING A SUBSTANTIALLY COLORLESS CHEMICALLY BONDED COATING ON AN ALUMINUM ARTICLE, WHICH COMPRISES TREATING SAID ARTICLE IN AN AQUEOUS SOLUTION CONTAINING A SMALL EFFECTIVE AMOUNT OF A SOLUBLE COMPOUND CONTAINING UNSATURATED TETRAVALENT CARBON LINKED TO NITROGEN AND TO AN ELEMENT OF THE GROUP CONSISTING OF OXYGEN AND SULFUR.
Claim 3
Dependent Claim
39 words
A PROCESS FOR PRODUCING A SUBSTANTIALLY COLORLESS CHEMICALLY BONDED COATING ON AN ALUMINUM ARTICLE, WHICH COMPRISES TREATING SAID ARTICLE IN AN AQUEOUS SOLUTION CONTAINING A SMALL EFFECTIVE AMOUNT OF A SOLUBLE COMPOUND HAVING THE LINKAGES REPRESENTED BY THE FORMULA
Claim 4
Dependent Claim
39 words
A PROCESS FOR PRODUCING A SUBSTANTIALLY COLORLESS CHEMICALLY BONDED COATING ON AN ALUMINUM ARTICLE, WHICH COMPRISES TREATING SAID ARTICLE IN AN AQUEOUS SOLUTION CONTAINING A SMALL EFFECTIVE AMOUNT OF A SOLUBLE COMPOUND HAVING THE LINKAGES REPRESENTED BY THE FORMULA
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) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |