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Patent US3582320A successfully refreshed from Google Patents.
US3582320A
Expired / Lapsed
US
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Cobalt base alloy
Assignee: Haynes International Inc
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Filing: 1969-12-22
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Granted: 1971-06-01
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Expires: 1989-12-22
Abstract
Abstract A COBALT BASE ALLOY HAVING SUPERIOR OXIDATION AND WEAR RESISTANCE WHICH HAS A RELATIVELY HIGH CARBON CONTENT AND CONTAINS A MINOR PROPORTION OF LANTHANUM.
Inventors
- 👤 Robert B Herchenroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:45
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |