Patent US2943960A successfully refreshed from Google Patents.
US2943960A
Expired / Lapsed
US
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Process for making wrought coppertitanium alloys
Assignee: Cyprus Amax Minerals Co
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Filing: 1957-08-27
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Granted: 1960-07-05
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Expires: 1977-08-27
Abstract
No abstract record available.
Inventors
- 👤 Matti J Saarivirta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:22
CPC Classifications
C; C22; C22C; C22C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN THE PROCESS OF MAKING COPPER-TITANIUM ALLOYS THE IMPROVEMENT COMPRISING THE STEPS OF ALLOYING INITIALLY OXYGEN-FREE COPPER UNDER OXYGEN EXCLUDING CONDITIONS WITH SUFFICIENT TITANIUM TO PROVIDE A TITANIUM CONTENT OF FROM 1 TO 6% BY WEIGHT IN THE RESULTING CAST ALLOY, PREHEATING SAID CAST ALLOY AND HOT WORKING THE SAME TO EFFECT A REDUCTION IN CROSS-SECTIONAL AREA OF AT LEAST 50%.
Claim 2
Dependent Claim
61 words
IN THE PROCESS OF MAKING COPPER-TITANIUM ALLOYS THE IMPROVEMENT COMPRISING THE STEPS OF ALLOYING INITIALLY OXYGEN-FREE COPPER UNDER OXYGEN EXCLUDING CONDITIONS WITH SUFFICIENT TITANIUM TO PROVIDE A TITANIUM CONTENT OF FROM 1 TO 6% BY WEIGHT IN THE RESULTING CAST ALLOY, PREHEATING SAID CAST ALLOY AND HOT WORKING THE SAME TO EFFECT A REDUCTION IN CROSS-SECTIONAL AREA OF AT LEAST 50%.
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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |