US2665243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing aluminum with a flexible oxide coating
Assignee: General Electric Co
•
Filing: 1952-02-15
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Granted: 1954-01-05
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Expires: 1972-02-15
Abstract
No abstract record available.
Inventors
- 👤 Gerald W Young
- 👤 John L Hain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:56
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE METHOD OF PROVIDING AN ALUMINUM SURFACE WITH A FLEXIBLE OXIDE COATING WHICH COMPRISES ANODICALLY OXIDIZING THE SURFACE IN A DILUTE AQUEOUS SOLUTION OF OXALIC ACID AND THERAFTER IMMERSING THE OXIDE-COATED SURFACE IN A FLEXING BATH CONSISTING OF AN AQUEOUS SOLUTION OF OXALIC ACID AT A TEMPERATURE OF FROM ABOUT 80* C. TO 95* C.
Claim 2
Independent Claim
55 words
THE METHOD OF PROVIDING AN ALUMINUM SURFACE WITH A FLEXIBLE OXIDE COATING WHICH COMPRISES ANODICALLY OXIDIZING THE SURFACE IN A DILUTE AQUEOUS SOLUTION OF OXALIC ACID AND THERAFTER IMMERSING THE OXIDE-COATED SURFACE IN A FLEXING BATH CONSISTING OF AN AQUEOUS SOLUTION OF OXALIC ACID AT A TEMPERATURE OF FROM ABOUT 80* C. TO 95* C.
References Cited (Backward Citations)
US2407809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |