Patent US3156559A successfully refreshed from Google Patents.
US3156559A
Expired / Lapsed
US
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Aluminum bronze alloy containing iron and cobalt and method of heat treating the same
Assignee: Ampco Metal Inc
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Filing: 1961-07-19
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Granted: 1964-11-10
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Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 John F Klement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:21
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ALUMINUM BRONZE ALLOY, CONSISTING ESSENTIALLY OF 9.0% TO 12.0% ALUMINUM, 2.0% TO 5.0% IRON, 0.01% TO 1.9% COBALT AND THE BALANCE COPPER, SAID ALLOY HAVING A METALLOGRAPHIC STRUCTURE CONSISTING OF BETA, COBALT-CONTAINING INTERMETALLIC COMPOUNDS AND ACICULAR ALPHA AND HAVING A TENSILE STRENGTH IN THE RANGE OF 100,000 TO 120,000 P.S.I., A YIELD STRENGTH IN THE RANGE OF 45,000 TO 70,000 P.S.I., AN ELONGATION IN TWO INCHES OF 5% TO 30%, AND A BRINELL HARNESS IN THE RANGE OF 190 TO 240.
Claim 2
Dependent Claim
82 words
AN ALUMINUM BRONZE ALLOY, CONSISTING ESSENTIALLY OF 9.0% TO 12.0% ALUMINUM, 2.0% TO 5.0% IRON, 0.01% TO 1.9% COBALT AND THE BALANCE COPPER, SAID ALLOY HAVING A METALLOGRAPHIC STRUCTURE CONSISTING OF BETA, COBALT-CONTAINING INTERMETALLIC COMPOUNDS AND ACICULAR ALPHA AND HAVING A TENSILE STRENGTH IN THE RANGE OF 100,000 TO 120,000 P.S.I., A YIELD STRENGTH IN THE RANGE OF 45,000 TO 70,000 P.S.I., AN ELONGATION IN TWO INCHES OF 5% TO 30%, AND A BRINELL HARNESS IN THE RANGE OF 190 TO 240.
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |