US3019102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-zirconium-hafnium alloys
Assignee: Cyprus Amax Minerals Co
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Filing: 1960-08-19
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Granted: 1962-01-30
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Expires: 1980-08-19
Abstract
No abstract record available.
Inventors
- 👤 Matti J Saarivirta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:28
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/222; C; C22; C22C; C22C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
AN AGE HARDENABLE COPPER BASE ALLOY CONTAINING FROM 0.02 TO ABOUT 0.15% ZIRCONIUM, FROM 0.1 TO ABOUT 1.2% HAFNIUM AND THE REMAINDER OXYGEN-FREE COPPER
Claim 2
Dependent Claim
24 words
AN AGE HARDENABLE COPPER BASE ALLOY CONTAINING FROM 0.02 TO ABOUT 0.15% ZIRCONIUM, FROM 0.1 TO ABOUT 1.2% HAFNIUM AND THE REMAINDER OXYGEN-FREE COPPER
References Cited (Backward Citations)
US2086329A
Cited
US2097816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |