US3303561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of an ironaluminum alloy
Assignee: Individual
•
Filing: 1963-02-26
•
Granted: 1967-02-14
•
Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Cabane Gerard
- 👤 Mouturat Pierre
- 👤 Petit Jean-Francois
- 👤 Sainfort Gerard
- 👤 Salesse Marc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:05
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/06; G21C3/07; C; C21; C21C; C21C7/00; C22; C22C; C22C21/00; C22C33/00; C22C33/04; C22C38/00; C22C38/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49991
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
A PROCESS FOR THE PREPARATION OF AN IRON-ALUMINUM ALLOY CONSISTING ESSENTIALLY OF BETWEN GREATER THAN 18% AND ABOUT 40% BY WEIGHT OF ALUMINUM, UP TO 1% BY WEIGHT OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, NIOBIUM, TITANIUM, YTTRIUM, THE RARE EARTHS, BORON AND MIXTURES THEREOF AND THE BALANCE IRON, COMPRISING THE STEPS OF: MELTING SAID IRON, INCORPORATING SAID ADDITIVE AND SAID ALUMINUM INTO SAID MOLTEN IRON, CASTING WITH ONLY A SIGHT AMOUNT OF SUPERHEAT TO PRODUCE, AFTER SOLIDFICATION AND COOLING OF THE ALLOY, AN INGOT THEREOF, AND HOT WORKING SAID INGOT.
Claim 2
Dependent Claim
94 words
A PROCESS FOR THE PREPARATION OF AN IRON-ALUMINUM ALLOY CONSISTING ESSENTIALLY OF BETWEN GREATER THAN 18% AND ABOUT 40% BY WEIGHT OF ALUMINUM, UP TO 1% BY WEIGHT OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, NIOBIUM, TITANIUM, YTTRIUM, THE RARE EARTHS, BORON AND MIXTURES THEREOF AND THE BALANCE IRON, COMPRISING THE STEPS OF: MELTING SAID IRON, INCORPORATING SAID ADDITIVE AND SAID ALUMINUM INTO SAID MOLTEN IRON, CASTING WITH ONLY A SIGHT AMOUNT OF SUPERHEAT TO PRODUCE, AFTER SOLIDFICATION AND COOLING OF THE ALLOY, AN INGOT THEREOF, AND HOT WORKING SAID INGOT.
Claim 3
Dependent Claim
100 words
A PROCESS FOR THE PREPARATION OF AN AT LEAST BINARY IRON-ALUMINUM ALLOY CONSISTING ESSENTIALLY OF BETWEEN GREATER THAN 18% AND ABOUT 40% BY WEIGHT OF ALUMINUM AND THE BALANCE IRON, SAID ALLOY BEING CHARACTERIZED BY A RELATIVELY LOW BRITTLENESS PERMITTING MACHINING OPERATIONS, COMPRISING THE STEPS OF: MELTING SAID IRON, ADDING SAID ALUMINUM TO SAID MOLTEN IRON, CASTING AT A TEMPERATURE LESS THAN 50%*C. ABOVE THE TEMPERATURE OF SOLIDIFICATION OF THE ALLOY INTO A PREHEATED INGOT MOLD TO PRODUCE, AFTER SOLIDFICATION AND COOLING, AN INGOT THEREOF, AND DESTROYING THE CAST STRUCTURE OF SAID INGOT BY HOT STATE MECHANICAL WORKING AND DEFORMATION.
Claim 4
Dependent Claim
100 words
A PROCESS FOR THE PREPARATION OF AN AT LEAST BINARY IRON-ALUMINUM ALLOY CONSISTING ESSENTIALLY OF BETWEEN GREATER THAN 18% AND ABOUT 40% BY WEIGHT OF ALUMINUM AND THE BALANCE IRON, SAID ALLOY BEING CHARACTERIZED BY A RELATIVELY LOW BRITTLENESS PERMITTING MACHINING OPERATIONS, COMPRISING THE STEPS OF: MELTING SAID IRON, ADDING SAID ALUMINUM TO SAID MOLTEN IRON, CASTING AT A TEMPERATURE LESS THAN 50%*C. ABOVE THE TEMPERATURE OF SOLIDIFICATION OF THE ALLOY INTO A PREHEATED INGOT MOLD TO PRODUCE, AFTER SOLIDFICATION AND COOLING, AN INGOT THEREOF, AND DESTROYING THE CAST STRUCTURE OF SAID INGOT BY HOT STATE MECHANICAL WORKING AND DEFORMATION.
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |