Patent US12987A successfully refreshed from Google Patents.
US2662011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasion and corrosion resistant white cast iron
Assignee: Huntington Alloys Corp
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Filing: 1951-08-20
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Granted: 1953-12-08
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Expires: 1971-08-20
Abstract
No abstract record available.
Inventors
- 👤 Gagnebin Albert Paul
- 👤 Seigle Leslie Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:32
CPC Classifications
C; C22; C22C; C22C37/00; C22C37/06; C22C37/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AS A NEW ARTICLE OF MANUFACTURE, A WHITE IRON CASTING HAVING INCLUDED SECTIONS AT LEAST ABOUT ONE-HALF INCH IN THICKNESS AND BEING CHARACTERIZED BY A FINE-GRAIN STRUCTURE BY A MICROSTRUCTURE CONTAINING A PRIMARY MASSIVE CARBIDE PHASE DISPERSED IN A DISCONTINUOUS MANNER THROUGHOUT A CONTINUOUS MARTENSITE-AUSTENITE PHASE AND CONTAINING ABOUT 3% TO ABOUT 3.7% CARBON, ABOUT 0.5% TO ABOUT 3% SILICON, ABOUT 4% TO ABOUT 8% NICKEL, ABOUT 6.8% TO ABOUT 15% CHROMIUM, THE CARBON, SILICON, NICKEL AND CHROMIUM BEING PRESENT IN SUCH AMOUNTS AS WILL SATISFY THE RELATIONSHIP EXPRESSED IN THE EQUATION
Claim 2
Dependent Claim
92 words
AS A NEW ARTICLE OF MANUFACTURE, A WHITE IRON CASTING HAVING INCLUDED SECTIONS AT LEAST ABOUT ONE-HALF INCH IN THICKNESS AND BEING CHARACTERIZED BY A FINE-GRAIN STRUCTURE BY A MICROSTRUCTURE CONTAINING A PRIMARY MASSIVE CARBIDE PHASE DISPERSED IN A DISCONTINUOUS MANNER THROUGHOUT A CONTINUOUS MARTENSITE-AUSTENITE PHASE AND CONTAINING ABOUT 3% TO ABOUT 3.7% CARBON, ABOUT 0.5% TO ABOUT 3% SILICON, ABOUT 4% TO ABOUT 8% NICKEL, ABOUT 6.8% TO ABOUT 15% CHROMIUM, THE CARBON, SILICON, NICKEL AND CHROMIUM BEING PRESENT IN SUCH AMOUNTS AS WILL SATISFY THE RELATIONSHIP EXPRESSED IN THE EQUATION
References Cited (Backward Citations)
US1988912A
Cited
US2189131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |