Refractory lining design for magnetic separation
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Apr 1, 2025
Grant Date -
Dec 19, 2024
app pub date -
Jun 19, 2023
filing date -
Jun 19, 2023
priority date (Note) -
In Force
status (Latency Note)
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Non-US Coverage
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Abstract
A device and method of reclaiming refractory material from a lining of a refractory includes assembling a first refractory component of the lining with a first refractory product, and assembling a second refractory component of the working lining with a second refractory product different from the first refractory product, the second refractory product including magnetic material dispersed therein. Upon the lining reaching a service life, the lining is demolished to produce a mixture of the first refractory component pieces and the second refractory component pieces. Magnetic separation is performed on the mixture to separate the second refractory component pieces from the first refractory component pieces.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- HARBISONWALKER INTERNATIONAL HOLDINGS, INC.
International Classification(s)

- 2023 Application Filing Year
- B03C Class
- 121 Applications Filed
- 33 Patents Issued To-Date
- 27.28 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Hartwich, David | Bethel Park, US | 3 | 0 |
# of filed Patents : 3 Total Citations : 0 | |||
Sayre, Joshua | Pittsburgh, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
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Patent Citation Ranking
- 0 Citation Count
- B03C Class
- 0 % this patent is cited more than
- < 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 1, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 1, 2032 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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