US3192073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making oxidation resistant and ductile iron base aluminum alloys
Assignee: Old Carco LLC
•
Filing: 1961-04-17
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Granted: 1965-06-29
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Expires: 1981-04-17
Abstract
No abstract record available.
Inventors
- 👤 Walter E Jominy
- 👤 Roy Amedee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:20
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T29/49984
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR PRODUCING FERROUS BASE PRODUCTS CAPABLE OF SUBSTANTIAL RESISTANCE TO OXIDATION AND SCALING UPON EXPOSURE TO HIGH TEMPERATURES IN THE ORDER OF 1600*F. TO 2400*F. COMPRISING CASTING A METAL BODY CONSISTING ESSENTIALLY OF IRON AND ALUMINUM IN SOLID SOLUTION, SAID BODY HAVING A SUBSTANTIALLY UNIFORM ALUMINUM CONCENTRATION THROUGHOUT BETWEEN 3% TO 12% BY WEIGHT OF SAID BODY AND SAID BODY BEING COLD WORKABLE AT ROOM TEMPERATURE, COATING THE SURFACE OF SAID BODY WITH METAL CONSISTING ESSENTIALLY OF ALUMINUM AND HEATING SAID ALUMINUM COATED BODY TO INCREASE THE ALUMINUM CONCENTRATION OF THE IRON-ALUMINUM AT SUCH SURFACE.
Claim 2
Dependent Claim
97 words
A PROCESS FOR PRODUCING FERROUS BASE PRODUCTS CAPABLE OF SUBSTANTIAL RESISTANCE TO OXIDATION AND SCALING UPON EXPOSURE TO HIGH TEMPERATURES IN THE ORDER OF 1600*F. TO 2400*F. COMPRISING CASTING A METAL BODY CONSISTING ESSENTIALLY OF IRON AND ALUMINUM IN SOLID SOLUTION, SAID BODY HAVING A SUBSTANTIALLY UNIFORM ALUMINUM CONCENTRATION THROUGHOUT BETWEEN 3% TO 12% BY WEIGHT OF SAID BODY AND SAID BODY BEING COLD WORKABLE AT ROOM TEMPERATURE, COATING THE SURFACE OF SAID BODY WITH METAL CONSISTING ESSENTIALLY OF ALUMINUM AND HEATING SAID ALUMINUM COATED BODY TO INCREASE THE ALUMINUM CONCENTRATION OF THE IRON-ALUMINUM AT SUCH SURFACE.
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |