US2900288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for heat-treating a bearing alloy
Assignee: Voestalpine AG
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Filing: 1956-07-05
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Granted: 1959-08-18
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Expires: 1976-07-05
Abstract
No abstract record available.
Inventors
- 👤 Pelzel Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:49
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/10; C22C18/00; C22C20/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49707; Y10T29/49709
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A METHOD OF PRODUCING AN ALUMINIUM-ZINC-COPPER ALLOY FOR BEARING PURPOSES COMPRISING THE STEPS OF: PRODUCING A COMPOSITION ALLOY OF 35 TO 50% AL, 5.8 TO 8.3% CU, 0 TO 0.3% FE, 0 TO 0.25% SI, AND 59.2 TO 41.15% OF ZN; OF SHAPING SAID ALOY, AND OF HEAT-TREATING SAID ALLOY AT TEMPERATURE FROM 100 TO 280*C. FOR A TIME FROM 24 TO 48 HOURS.
Claim 2
Independent Claim
64 words
A METHOD OF PRODUCING AN ALUMINIUM-ZINC-COPPER ALLOY FOR BEARING PURPOSES COMPRISING THE STEPS OF: PRODUCING A COMPOSITION ALLOY OF 35 TO 50% AL, 5.8 TO 8.3% CU, 0 TO 0.3% FE, 0 TO 0.25% SI, AND 59.2 TO 41.15% OF ZN; OF SHAPING SAID ALOY, AND OF HEAT-TREATING SAID ALLOY AT TEMPERATURE FROM 100 TO 280*C. FOR A TIME FROM 24 TO 48 HOURS.
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |