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US3313620A
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Steel with lead and rare earth metals
Assignee: E I TE R SpA ELETTOCHIMICA I
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Filing: 1964-02-12
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Granted: 1967-04-11
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Expires: 1984-02-12
Abstract
No abstract record available.
Inventors
- 👤 Corradini Dante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:26
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/60; C21; C21C; C21C7/00; C21C7/0006; C22C1/00; C22C1/02; C22C1/03; C22C11/00; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
30 words
A STEEL CONTAINING CONVENTIONAL ELEMENTS TOGETHER WITH 0.10% TO 0.80% LEAD AND 0.02% TO 0.30% OF A RARE EARTH METAL, THE BALANCE CONSISTING ESSENTIALLY OF IRON AND SAID CONVENTIONAL ELEMENTS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |