US3341369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper base alloys and process for preparing same
Assignee: Olin Corp
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Filing: 1965-03-03
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Granted: 1967-09-12
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Expires: 1985-03-03
Abstract
No abstract record available.
Inventors
- 👤 Elmer J Caule
- 👤 Michael J Pryor
- 👤 Philip R Sperry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:59
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/10; C22; C22C; C22C9/00; C22C9/01; C22C9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR THE PREPARATION OF A COPPER BASE ALLOY CAPABLE OF SUBSTANTIAL RESISTANCE TO OXIDATION WHICH COMPRISES: (A) PROVIDING FROM 2.0 TO 25 PERCENT BY WEIGHT OF TWO ELEMENTS, WITH THE RATIO OF THE FIRST TO THE SECOND OF SAID ELEMENTS BEING FROM 0.03:1 TO 10:1, THE FIRST OF SAID ELEMENTS BEING SELECTED FROM THE GROUP CONSISTING OF: ALUMINUM, GALLIUM; INDIUM; AND BERYLLIUM, THE SECOND OF SAID ELEMENTS BEING SELECTED FROM THE GROUP CONSISTING OF: SILICON, GERMANIUM; TIN; AND BERYLLIUM, PROVIDED THAT WHEN BERYLLIUM IS THE SECOND ELEMENT, ALUMINUM IS THE FIRST ELEMENT; (B) ALLOYING SAID ELEMENTS WITH COPPER;
Claim 2
Dependent Claim
100 words
A PROCESS FOR THE PREPARATION OF A COPPER BASE ALLOY CAPABLE OF SUBSTANTIAL RESISTANCE TO OXIDATION WHICH COMPRISES: (A) PROVIDING FROM 2.0 TO 25 PERCENT BY WEIGHT OF TWO ELEMENTS, WITH THE RATIO OF THE FIRST TO THE SECOND OF SAID ELEMENTS BEING FROM 0.03:1 TO 10:1, THE FIRST OF SAID ELEMENTS BEING SELECTED FROM THE GROUP CONSISTING OF: ALUMINUM, GALLIUM; INDIUM; AND BERYLLIUM, THE SECOND OF SAID ELEMENTS BEING SELECTED FROM THE GROUP CONSISTING OF: SILICON, GERMANIUM; TIN; AND BERYLLIUM, PROVIDED THAT WHEN BERYLLIUM IS THE SECOND ELEMENT, ALUMINUM IS THE FIRST ELEMENT; (B) ALLOYING SAID ELEMENTS WITH COPPER;
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |