Fully-stabilized steel for porcelain enameling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 26, 2002
Grant Date -
N/A
app pub date -
Sep 11, 2000
filing date -
Sep 11, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of producing a fully stabilized extra low carbon porcelain enameling steel having excellent formability and fish scaling resistance as well as superior enamel adherence. The method includes hot rolling a slab to strip, the slab having a composition consisting essentially of in weight percent: 0.005 max. C, 0.35 max. Mn, 0.015 max. P, 0.015 max. S, 0.015 max. Si, 0.025 to 0.055 Al, 0.006 to 0.015 N, 0.03 to 0.06 Ti, 0.02 to 0.05 Cb, up to 0.03 Sb, the balance Fe and inevitable impurities. The hot rolled strip is cold rolled at least 65% and box annealed until a cold spot temperature within the range of 610 to 705 degrees C. is reached. The invention includes the product made according to the process.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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UNITED STATES STEEL LLC | 600 GRANT STREET LAW DEPARTMENT - ROOM 1500 PITTSBURGH PA 15219 |
International Classification(s)

- 2000 Application Filing Year
- C21D Class
- 169 Applications Filed
- 83 Patents Issued To-Date
- 49.12 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Altemus, George Franklin | Shaler Township, Allegheny County, PA | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
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Patent Citation Ranking
- 0 Citation Count
- C21D Class
- 0 % this patent is cited more than
- 23 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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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