US3156560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ductile niobium and tantalum alloys
Assignee: General Electric Co
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Filing: 1959-06-05
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Granted: 1964-11-10
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Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Jr John W Semmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:20
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A BODY COMPOSED OF (A) AT LEAST 90 WEIGHT PERCENT OF A MATRIX METAL SELECTED FROM THE GROUP CONSISTING OF NIOBIUM AND TANTALUM, AND MATRIX CONTAINING SMALL AMOUNTS OF OXYGEN, CARBON AND NITROGEN AS NONMETALLIC IMPURITIES AND, (B) A COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF SCANDIUM, YTTRIUM AND THE RARE EARTH ELEMENTS OF THE LANTHANIDE SERIES OF THE PERIODIC TABLE OF ELEMENTS, AND COMBINATIONS THEREOF TOGETHER WITH SAID NONMETALLIC IMPURITIES, SAID SELECTED METAL BEING ADDED IN AMOUNTS OF FROM ABOUT 2 TO 10 WEIGHT PERCENT OF SAID ALLOY TO COMBINE WITH SAID NONMETALLIX IMPURITIES AND INCREASE THE DUCTILITY OF SAID MATRIX METAL.
Claim 2
Dependent Claim
106 words
A BODY COMPOSED OF (A) AT LEAST 90 WEIGHT PERCENT OF A MATRIX METAL SELECTED FROM THE GROUP CONSISTING OF NIOBIUM AND TANTALUM, AND MATRIX CONTAINING SMALL AMOUNTS OF OXYGEN, CARBON AND NITROGEN AS NONMETALLIC IMPURITIES AND, (B) A COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF SCANDIUM, YTTRIUM AND THE RARE EARTH ELEMENTS OF THE LANTHANIDE SERIES OF THE PERIODIC TABLE OF ELEMENTS, AND COMBINATIONS THEREOF TOGETHER WITH SAID NONMETALLIC IMPURITIES, SAID SELECTED METAL BEING ADDED IN AMOUNTS OF FROM ABOUT 2 TO 10 WEIGHT PERCENT OF SAID ALLOY TO COMBINE WITH SAID NONMETALLIX IMPURITIES AND INCREASE THE DUCTILITY OF SAID MATRIX METAL.
References Cited (Backward Citations)
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Cited
US2187630A
Cited
US2838395A
Cited
US2838396A
Cited
US2881069A
Cited
US2883282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |