US2898230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of cleaning and coating aluminum
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1954-04-08
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Granted: 1959-08-04
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Expires: 1974-04-08
Abstract
No abstract record available.
Inventors
- 👤 Jack J Bulloff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:21
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06; C23C16/08; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12743; Y10T428/1275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE PROCESS OF PROVIDING A METAL COATED, OXIDEFREE ALUMINUM BODY WHICH COMPRISES SUBJECTING A BODY OF ALUMINUM HAVING AN OXIDE COATING THEREON TO FUSED CRYOLITE TO REMOVE THE SAID OXIDE COATING AND TO LEAVE A BODY OF SUBSTANTIALLY PURE ALUMINUM, CONTACTING SAID OXIDE-FREE ALUMINUM BODY WITH VAPORS OF AN OXYGENFREE METAL BEARING COMPOUND WHILE PROVIDING THE ALUMINUM AT A TEMPERATURE TO REACT WITH THE METAL BEARING COMPOUND TO PRODUCE A VOLATILE ALUMINUM COMPOUND AND A METAL DEPOSIT OF THE METAL OF THE COMPOUND ON THE ALUMINUM BODY, REMOVING THE VOLATILE ALUMINUM COMPOUND AS IT IS FORMED TO PROVIDE AN ALUMINUM BODY HAVING AN ADHERENT COATING OF METAL THEREON WHICH OF RESISTANT TO OXIDATION AND WHICH INHIBITS OXIDATION OF THE ALUMINUM BODY.
Claim 2
Dependent Claim
121 words
THE PROCESS OF PROVIDING A METAL COATED, OXIDEFREE ALUMINUM BODY WHICH COMPRISES SUBJECTING A BODY OF ALUMINUM HAVING AN OXIDE COATING THEREON TO FUSED CRYOLITE TO REMOVE THE SAID OXIDE COATING AND TO LEAVE A BODY OF SUBSTANTIALLY PURE ALUMINUM, CONTACTING SAID OXIDE-FREE ALUMINUM BODY WITH VAPORS OF AN OXYGENFREE METAL BEARING COMPOUND WHILE PROVIDING THE ALUMINUM AT A TEMPERATURE TO REACT WITH THE METAL BEARING COMPOUND TO PRODUCE A VOLATILE ALUMINUM COMPOUND AND A METAL DEPOSIT OF THE METAL OF THE COMPOUND ON THE ALUMINUM BODY, REMOVING THE VOLATILE ALUMINUM COMPOUND AS IT IS FORMED TO PROVIDE AN ALUMINUM BODY HAVING AN ADHERENT COATING OF METAL THEREON WHICH OF RESISTANT TO OXIDATION AND WHICH INHIBITS OXIDATION OF THE ALUMINUM BODY.
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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) | 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 |