US2599002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for working and heat-treating a copper base alloy
Assignee: Ampco Metal Inc
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Filing: 1948-09-20
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Granted: 1952-06-03
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Expires: 1968-09-20
Abstract
No abstract record available.
Inventors
- 👤 John F Klement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:59
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
THE METHOD OF HEAT TREATING A WORKED ALUMINUM BRONZE ALLOY HAVING AN ALUMINUM CONTENT OF FROM 7.0 TO 10.5% AND OF HIGH WEAR RESISTANT CHARACTERISTICS TO IMPART DUCTILITY THERETO, WHICH COMPRISES SUBJECTING SAID ALLOY TO A HIGH TEMPERATURE SOAK OF APPROXIMATELY 1600* F., GRADUALLY REDUCING SAID TEMPERATURE TO A PREDETERMINED TEMPERATURE ABOVE THE RANGE OF TEMPERATURES FOR EUTECTOID TRANSFORMATION TO PERMIT A MAXIMUM AMOUNT OF ALPHA TO PRECIPITATE, AND THEREAFTER QUENCHING SAID ALLOY TO PREVENT FORMATION OF THE EUTECTOID PHASE.
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) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |