Patent US3574601A successfully refreshed from Google Patents.
US3574601A
Expired / Lapsed
US
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Corrosion resistant alloy
Assignee: Carpenter Technology Corp
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Filing: 1968-11-27
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Granted: 1971-04-13
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Expires: 1988-11-27
Abstract
Abstract AN ESSENTIALLY MARTENSITIC CR-NI-MO(W)-CU STAINLESS STEEL WHICH HAS GOOD CORROSION RESISTANCE IN ACID MEDIA AND HIGH STRENGTH.
Inventors
- 👤 Lewis P Myers
- 👤 Kermit J Goda Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:37
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/44; A; A45; A45C; A45C11/00; A45C11/16; C22C38/52
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |