US2795501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper base alloys
Assignee: Westinghouse Electric Corp
•
Filing: 1955-01-28
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Granted: 1957-06-11
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Expires: 1975-01-28
Abstract
No abstract record available.
Inventors
- 👤 James M Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:53
CPC Classifications
C; C22; C22C; C22C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A CAST MEMBER COMPRISING A PRECIPITATION HARDENABLE COPPER BASE ALLOY CONSISTING ESSENTIALLY OF FORM 0.45% TO 1.12% OF CHROMUNIUM, FROM 0.06% TO 0.15% BY WEIGHT OF PHOSPHORUS, THE BALANCE BEING COPPER WITH ELEMENTS AND IMPURITIES IN AMOUNTS NOT ADVERSELY AFFECTING THE CHARCTERISTIC PROPERTIES OF THE ALLOY, THE RATIO OF CHROMIUN TO PHOSPHORUS BEING AT LEAST 7.5 TO 1.
Claim 2
Dependent Claim
58 words
A CAST MEMBER COMPRISING A PRECIPITATION HARDENABLE COPPER BASE ALLOY CONSISTING ESSENTIALLY OF FORM 0.45% TO 1.12% OF CHROMUNIUM, FROM 0.06% TO 0.15% BY WEIGHT OF PHOSPHORUS, THE BALANCE BEING COPPER WITH ELEMENTS AND IMPURITIES IN AMOUNTS NOT ADVERSELY AFFECTING THE CHARCTERISTIC PROPERTIES OF THE ALLOY, THE RATIO OF CHROMIUN TO PHOSPHORUS BEING AT LEAST 7.5 TO 1.
References Cited (Backward Citations)
US2068817A
Cited
US2362007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |