US3612155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antipiping compound and process for the heat retaining of hot top surface
Assignee: Aikoh Co Ltd
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Filing: 1970-11-13
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Granted: 1971-10-12
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Expires: 1990-11-13
Abstract
Abstract An antipiping compound for hot top surface for ingot making which essentially more than 5 percent by weight of coffee grounds in components selected from the group consisting of easily oxidized metal powders, powdery metal oxides, carbonaceous materials, fibrous materials, fluorides, nitrates, nonporous and porous refractory materials and other effective materials.
Inventors
- 👤 Shigeru Matsuyama
- 👤 Yukio Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:58
CPC Classifications
B; B22; B22D; B22D27/00; B22D27/04; B22D27/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1978996A
Cited
US2165945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |