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US4062677A
Expired / Lapsed
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Tungsten-titanium-aluminum master alloy
Assignee: Reading Alloys Inc
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Filing: 1976-09-16
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Granted: 1977-12-13
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Expires: 1996-09-16
Abstract
Abstract The invention relates to master alloys containing about 55 to about 70% tungsten, about 2 to about 10% titanium, balance substantially aluminum.
Inventors
- 👤 Frederick H. Perfect
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:22
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
28 words
A tungsten-titanium-aluminum master alloy for use in making titanium base alloys comprising from about 55 to about 70% tungsten, about 2 to about 10% titanium, balance substantially aluminum.
Claim 2
Dependent Claim
28 words
A tungsten-titanium-aluminum master alloy for use in making titanium base alloys comprising from about 55 to about 70% tungsten, about 2 to about 10% titanium, balance substantially aluminum.
Claim 3
Dependent Claim
17 words
The master alloy of claim 1 consisting essentially of about 68% tungsten, about 7% titanium, balance aluminum.
References Cited (Backward Citations)
US1833076A
Cited
US3725054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |