US2726952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparation of iron aluminum alloys
Assignee: Ford Motor Co
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Filing: 1954-05-05
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Granted: 1955-12-13
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Expires: 1974-05-05
Abstract
No abstract record available.
Inventors
- 👤 Eric R Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:01
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
THE PROCESS OF PREPARING A DUCTILE AND SUBSTANTIALLY OXYGEN FREE ALLOY OF RION AND ALUMINUM COMPRISING FUSING UNDER VACUUM CONDITIONS AN IRON CHARGE IN THE PRESENCE OF CARBON, CONTINUING THE APPLICATION OF THE VACUUM CONDITIONS AFTER FUSION HAS TAKEN PLACE UNTIL THE EBULLITION OF CARBON MONOXIDE HAS CEASED AND THE PRESSURE HAS DROPPED TO A SUBSTANTIALLY CONSTANT LOW VALUE, ADDING AND FUSING INTO THE BATH AT LEAST SUFFICIENT METAL OF THE GROUP CONSISTING OF ZIRCONIUM, TITANIUM, NIOBIUM AND TANTALUM TO CHEMICALLY COMBINE WITH ANY RESIDUAL CARBON, ADDING METALLIC ALUMINUM TO AN EXTENT SUFFICIENT TO PRODUCE AN ALUMINUM CONTENT OF 5 TO 18% AND CASTING THE ALLOY, ALL OF SAID OPERATIONS BEING CONDUCTED WITHOUT INTERRUPTION OF THE VACUUM CONDITIONS.
Claim 2
Dependent Claim
118 words
THE PROCESS OF PREPARING A DUCTILE AND SUBSTANTIALLY OXYGEN FREE ALLOY OF RION AND ALUMINUM COMPRISING FUSING UNDER VACUUM CONDITIONS AN IRON CHARGE IN THE PRESENCE OF CARBON, CONTINUING THE APPLICATION OF THE VACUUM CONDITIONS AFTER FUSION HAS TAKEN PLACE UNTIL THE EBULLITION OF CARBON MONOXIDE HAS CEASED AND THE PRESSURE HAS DROPPED TO A SUBSTANTIALLY CONSTANT LOW VALUE, ADDING AND FUSING INTO THE BATH AT LEAST SUFFICIENT METAL OF THE GROUP CONSISTING OF ZIRCONIUM, TITANIUM, NIOBIUM AND TANTALUM TO CHEMICALLY COMBINE WITH ANY RESIDUAL CARBON, ADDING METALLIC ALUMINUM TO AN EXTENT SUFFICIENT TO PRODUCE AN ALUMINUM CONTENT OF 5 TO 18% AND CASTING THE ALLOY, ALL OF SAID OPERATIONS BEING CONDUCTED WITHOUT INTERRUPTION OF THE VACUUM CONDITIONS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |