US2974033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melting titanium metal
Assignee: Titanium Metals Corp
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Filing: 1954-06-07
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Granted: 1961-03-07
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Expires: 1974-06-07
Abstract
No abstract record available.
Inventors
- 👤 Robert J Krieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:01
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
METHOD FOR MELTING A METAL CONTAINING VOLATILIZABLE IMPURITIES SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND TITANIUM BASE ALLOYS WHICH COMPRISES ARC MELTING SAID METAL IN THE FORM OF A CONSUMABLE ELECTRODE IN A FURNACE HAVING THE ATMOSPHERE THEREIN COMPOSED SUBSTANTIALLY OF IMPURITY GASES EVOLVED FROM SAID METAL DURING MELTING, MAINTAINED AT A PRESSURE OF BETWEEN 5 MM. AND 095 MM. OF MERCURY ABSOLUTE.
Claim 2
Dependent Claim
64 words
METHOD FOR MELTING A METAL CONTAINING VOLATILIZABLE IMPURITIES SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND TITANIUM BASE ALLOYS WHICH COMPRISES ARC MELTING SAID METAL IN THE FORM OF A CONSUMABLE ELECTRODE IN A FURNACE HAVING THE ATMOSPHERE THEREIN COMPOSED SUBSTANTIALLY OF IMPURITY GASES EVOLVED FROM SAID METAL DURING MELTING, MAINTAINED AT A PRESSURE OF BETWEEN 5 MM. AND 095 MM. OF MERCURY ABSOLUTE.
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) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |