US3033676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-containing inoculant
Assignee: Huntington Alloys Corp
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Filing: 1960-07-08
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Granted: 1962-05-08
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Expires: 1980-07-08
Abstract
No abstract record available.
Inventors
- 👤 Gordon J Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:06
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/10; C21C1/105
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
THE METHOD OF EFFECTING THE GRAPHITIZING INOCULATION OF CAST IRON WHICH COMPRISES ESTABLISHING A MOLTEN BATH OF CAST IRON, INCORPORATING IN SAID BATH A SMALL AMOUNT OF AN ALLOY CONTAINING ABOUT 1% TO 4% MAGNESIUM, UP TO ABOUT 4% ALUMINUM, ABOUT 1% TO 4% CALCIUM, ABOUT 10% TO 25% OF A METAL FROM THE GROUP CONSISTING OF NICKEL AND IRON AND ABOUT 63% TO ABOUT 88% SILICON AND CASTING METAL FROM SAID BATH IN THE INOCULATED CONDITION TO PRODUCE A CAST IRON PRODUCT HAVING A MICROSTRUCTURE SUBSTANTIALLY DEVOID OF EUTECTIC CARBIDE AND CONTAINING GRAPHITE IN A WELL-DISPERSED FORM.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |