US3259491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper base alloys and process for preparing same
Assignee: Olin Corp
•
Filing: 1963-05-21
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Granted: 1966-07-05
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Expires: 1983-05-21
Abstract
No abstract record available.
Inventors
- 👤 Michael J Pryor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
C; C23; C23C; C23C26/00; C22; C22C; C22C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A COPPER BASE ALLOY CAPABLE OF SUBSTANTIAL RESISTANCE TO OXIDATION CONSISTING ESSENTIALLY OF A COPPER BASE ALLOY HAVING ON ITS SURFACE A COMPLEX OF AT LEAST TWO METAL ALLOYING ADDITIONS, EACH OF SAID ALLOYING ADDITIONS HAVING A MAXIMUM SOLID SOLUBILITY IN COPPER OF GREATER THAN 0.5 PERCENT BY WEIGHT, SAID COMPLX OXIDE HAVING: (A) A MELTING POINT ABOVE 1300*C.; (B) LESS THAN 0.5 PERCENT SOLID SOLUBILITY BY WEIGHT FOR COPPER OXIDES; AND (C) LESS THAN 2 PERCENT SOLID SOLUBILITY BY WEIGHT FOR THE INDIVIDUAL OXIDE COMPONENTS OF THE COMPLEX OXIDE.
Claim 2
Dependent Claim
90 words
A COPPER BASE ALLOY CAPABLE OF SUBSTANTIAL RESISTANCE TO OXIDATION CONSISTING ESSENTIALLY OF A COPPER BASE ALLOY HAVING ON ITS SURFACE A COMPLEX OF AT LEAST TWO METAL ALLOYING ADDITIONS, EACH OF SAID ALLOYING ADDITIONS HAVING A MAXIMUM SOLID SOLUBILITY IN COPPER OF GREATER THAN 0.5 PERCENT BY WEIGHT, SAID COMPLX OXIDE HAVING: (A) A MELTING POINT ABOVE 1300*C.; (B) LESS THAN 0.5 PERCENT SOLID SOLUBILITY BY WEIGHT FOR COPPER OXIDES; AND (C) LESS THAN 2 PERCENT SOLID SOLUBILITY BY WEIGHT FOR THE INDIVIDUAL OXIDE COMPONENTS OF THE COMPLEX OXIDE.
References Cited (Backward Citations)
US2075002A
Cited
US2101930A
Cited
US2075003A
Cited
US2193482A
Cited
US2270660A
Cited
US2237774A
Cited
US3067027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |