Patent US3137570A successfully refreshed from Google Patents.
US3137570A
Expired / Lapsed
US
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Inoculating alloy
Assignee: Vanadium Corp of America
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Filing: 1962-08-10
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Granted: 1964-06-16
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mickelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:03
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/08; C21C1/10; C21C1/105
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
AN INOCULATING ALLOY FOR GREY IRON, SAID ALLOY CONSISTING ESSENTIALLY OF 58 TO 68% SILICON, 9 TO 12% MANGANESE, 1.5 TO 4% CALCIUM, 2.5 TO 20% BARIUM, AND 0.8 TO 1.8% ALUMINUM, THE BALANCE BEING IRON AND INCIDENTAL IMPURITIES.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |