RADIANT TUBE APPARATUS AND METHOD FOR MANUFACTURING SAME
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Feb 16, 2023
app pub date -
Nov 25, 2020
filing date -
Nov 25, 2020
priority date (Note) -
Published
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
The present invention relates to a radiant tube apparatus disposed in a heat treatment facility to perform a heat treatment of a strip and a method for manufacturing the same. The radiant tube apparatus includes a tube having an internal pipe, wherein the tube has a first continuous pattern and a second continuous pattern extending side by side and spaced apart from each other at a predetermined distance on a surface, and, in each of the first continuous pattern and the second continuous pattern, a plurality of unit patterns having a predetermined height from the surface are connected to each other in a longitudinal direction.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY | 67 CHEONGAM-RO NAM-GU POHANG-SI GYEONGSANGBUK-DO 37673 37673 | |
POSCO | (GOEDONG-DONG) 6261 DONGHAEAN-RO NAM-GU POHANG-SI GYEONGSANGBUK-DO 37859 37859 |
International Classification(s)

- 2020 Application Filing Year
- F23C Class
- 72 Applications Filed
- 39 Patents Issued To-Date
- 54.17 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ha, Won | Pohang-si, Gyeongsangbuk-do, KR | 4 | 84 |
# of filed Patents : 4 Total Citations : 84 | |||
Lee, Mok Young | Pohang-si, Gyeongsangbuk-do, KR | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
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Patent Citation Ranking
- 0 Citation Count
- F23C Class
- 0 % this patent is cited more than
- 2 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 16, 2026 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 16, 2030 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 16, 2034 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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