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US4370299A
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Molybdenum-based alloy
Assignee: Toshiba Corp
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Filing: 1981-07-06
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Granted: 1983-01-25
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Expires: 2001-07-06
Abstract
Abstract A molybdenum-based alloy contains 0.001 to 0.5% of scandium. This alloy allows working at relatively low temperatures.
Inventors
- 👤 Shotaro Morozumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:30
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
23 words
A molybdenum-based alloy with excellent hot workability consisting essentially of 0.001 to 0.5% by weight of scandium and the remainder essentially of molybdenum.
Claim 2
Dependent Claim
23 words
A molybdenum-based alloy with excellent hot workability consisting essentially of 0.001 to 0.5% by weight of scandium and the remainder essentially of molybdenum.
Claim 3
Dependent Claim
19 words
An alloy according to claim 1, wherein scandium is contained in a maximum amount up to 0.2% by weight.
Claim 4
Dependent Claim
31 words
An alloy according to claim 1, further consisting of at least one element selected from the group consisting of Co, Cr, Fe, Re, Ru, V, Nb, Ti, W, Zr and B.
Claim 5
Dependent Claim
14 words
An alloy according to claim 1 or 2, comprising 10% or less of Nb.
Claim 6
Dependent Claim
14 words
An alloy according to claim 1 or 2, comprising 10% or less of V.
Claim 7
Dependent Claim
12 words
An alloy according to claim 1, comprising 10% or less of Ti.
Claim 8
Dependent Claim
13 words
An alloy according to claim 1, comprising of 0.001 to 0.1% of B.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |