US3254380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting process
Assignee: Union Carbide Corp
•
Filing: 1964-06-11
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Granted: 1966-06-07
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 George W Belcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:18
CPC Classifications
B; B22; B22C; B22C23/00; B22C23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
PROCESS FOR CASTING METAL IN A FLUID SLAG CASTING MOLD COMPRISING HEATING A STREAM OF PARTICULATED CASTING SLAG MATERIAL TO PARTIALLY FUSE THE SLAG PARTICLES AND DIRECTING THE STREAM OF PARTIALLY FUSED SLAG P ARTICLES ONTO THE WALLS OF A MOLD FOR ADHERENCE TO THE MOLD WALLS AND TO EACH OTHER TO FORM A SEMI-POROUS LINING OF SURFACEBONDED SLAG PARTICLES ON THE WALLS OF THE MOLD, POURING MOLTEN METAL INTO THE SO-LINED MOLD AND ALOWING THE
Claim 2
Dependent Claim
76 words
PROCESS FOR CASTING METAL IN A FLUID SLAG CASTING MOLD COMPRISING HEATING A STREAM OF PARTICULATED CASTING SLAG MATERIAL TO PARTIALLY FUSE THE SLAG PARTICLES AND DIRECTING THE STREAM OF PARTIALLY FUSED SLAG P ARTICLES ONTO THE WALLS OF A MOLD FOR ADHERENCE TO THE MOLD WALLS AND TO EACH OTHER TO FORM A SEMI-POROUS LINING OF SURFACEBONDED SLAG PARTICLES ON THE WALLS OF THE MOLD, POURING MOLTEN METAL INTO THE SO-LINED MOLD AND ALOWING THE
References Cited (Backward Citations)
US826157A
Cited
US1536952A
Cited
US1570929A
Cited
US1770684A
Cited
US2493394A
Cited
US2631344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |