US2850381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and alloy for adding rare earth elements and boron to molten metal baths
Assignee: American Metallurgical Products Co
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Filing: 1952-08-01
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Granted: 1958-09-02
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Expires: 1972-08-01
Abstract
No abstract record available.
Inventors
- 👤 Wilbur T Bolkcom
- 👤 William E Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:55
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; C22C1/03; C22C28/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
THE METHOD OF SIMULTANEOUSLY ADDING RARE EARTH ELEMENTS AND BORON TO METALS COMPRISING FORMING A MOLTEN BATH OF THE METAL TO WHICH THE RARE EARTH ELEMENT IS TO BE ADDED, ADDING TO SAID MOLTEN BATH AN ALLOY COMPRISING ABOUT 10% TO 95% MANGANESE, UP TO ABOUT 75% NICKEL, AND 5% TO 60% OF RARE EARTH METALS, ABOUT 1% TO 10% BORON, THE BALANCE BEING USUAL IMPURITIES IN ORDINARY AMOUNTS, PERMITTING THE ALLOY TO MELT IN SAID MOLTEN BATH AND SOLIDIFYING THE RESULTING MOLTEN MASS.
References Cited (Backward Citations)
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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) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |