Patent US2496971A successfully refreshed from Google Patents.
US2496971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermite coating process
Assignee: Individual
•
Filing: 1948-04-30
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Granted: 1950-02-07
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Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Sol B Wiczer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:42
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/34; C; C23; C23C; C23C26/00; C23C26/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
THE PROCESS OF COATING AN IRON CASTING WHICH COMPRISES, HEATING THE CASTING UNTIL IT IS WHITE HOT, ALLOWING THE CASTING TO COOL JUST SUFFICIENTLY TO HARDEN, EVENLY APPLYING A MIXTURE OF TWO PARTS BY WEIGHT OF CHROMIC OXIDE POWDER AND ONE PART BY WEIGHT OF ALUMINUM POWDER TO A SURFACE OF THE HOT CASTING, WHEREBY A REACTION OCCURS ON THE SURFACE OF THE HOT CASTING, BETWEEN THE CHROMIC OXIDE AND ALUMINUM POWDER MIXTURE TO PROVIDE A METALLIC COATING ON THE CASTING.
References Cited (Backward Citations)
US1580647A
Cited
US1943171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |