Method for producing H-shaped steel
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United States of America Patent
Stats
-
Aug 4, 2020
Grant Date -
Apr 26, 2018
app pub date -
Mar 10, 2016
filing date -
Mar 19, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
[Object] To suppress occurrence of shape defects in a material to be rolled and enable efficient and stable production of an H-shaped steel product with a flange width larger than a conventional flange width by creating deep splits on end surfaces of a material (e.g., slab) using projections with acute-angle tip shapes, and sequentially bending formed flange portions.
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International Classification(s)
- 2016 Application Filing Year
- B21B Class
- 211 Applications Filed
- 138 Patents Issued To-Date
- 65.41 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B21B Class
- 0 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 4, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 4, 2032 |
