US3247026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing an oxide coating on magnesium-aluminum alloys
Assignee: Continental Can Co Inc
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Filing: 1962-02-20
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Granted: 1966-04-19
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Expires: 1982-02-20
Abstract
No abstract record available.
Inventors
- 👤 Marshall H Switzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:52
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/10; C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/10; C23C8/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF IMPROVING THE ADHESION BETWEEN MAGNESIUM-ALUMINUM ALLOYS WHEREIN THE ALUMINUM IS PRESENT IN A PREVAILING AMOUNT AND AN ORGANIC ENAMEL COATING WHICH COMPRISES (1) CLEANING THE SURFACES OF SAID MAGNESIUM-ALUMINUM ALLOYS TO REMOVE EXISTING OXIDES AND (2) SUBSEQUENTLY SUBJECTING THE CLEANED SURFACES TO WATER HAVING A TEMPERTURE OF AT LEAST 100*C. FOR A PERIOD OF ABOUT 2 TO 30 SECONDS TO FORM A STABLE OXIDE FILM OF MAGNESIUM AND ALUMINUM WHICH IS RECEPTIVE TO SAID ORGANIC ENAMEL COATING.
Claim 2
Independent Claim
80 words
A METHOD OF IMPROVING THE ADHESION BETWEEN MAGNESIUM-ALUMINUM ALLOYS WHEREIN THE ALUMINUM IS PRESENT IN A PREVAILING AMOUNT AND AN ORGANIC ENAMEL COATING WHICH COMPRISES (1) CLEANING THE SURFACES OF SAID MAGNESIUM-ALUMINUM ALLOYS TO REMOVE EXISTING OXIDES AND (2) SUBSEQUENTLY SUBJECTING THE CLEANED SURFACES TO WATER HAVING A TEMPERTURE OF AT LEAST 100*C. FOR A PERIOD OF ABOUT 2 TO 30 SECONDS TO FORM A STABLE OXIDE FILM OF MAGNESIUM AND ALUMINUM WHICH IS RECEPTIVE TO SAID ORGANIC ENAMEL COATING.
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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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |