Treatment of furnace tubes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 20, 1997
Issued Date -
N/A
app pub date -
May 20, 1996
filing date -
Feb 13, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Stainless steel which is used in applications in the petrochemical industry may be treated by exposure to an atmosphere containing a low amount of oxygen at temperatures up to 1200.degree. C. for up to about 50 hours. The treated steel has a lower tendency to coke during use.
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 | |
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INDIANA FORGE LLC | 15411 SHELBOURNE ROAD WESTFIELD IN 46074 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Benum, Les W | Red Deer, CA | 1 | 14 |
# of filed Patents : 1 Total Citations : 14 | |||
Oballa, Mike C | Calgary, CA | 1 | 14 |
# of filed Patents : 1 Total Citations : 14 | |||
Wong, William | Calgary, CA | 86 | 3708 |
# of filed Patents : 86 Total Citations : 3708 |
Cited Art Landscape
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Patent Citation Ranking
- 14 Citation Count
- C23C Class
- 43.27 % this patent is cited more than
- 28 Age
Forward Cite Landscape
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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 |
Full Text

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Date | Code | Event | Description |
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Jul 14, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jan 30, 2018 | I | Issuance | |
Jan 10, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 01, 2017 | P | Published | |
Feb 17, 2016 | F | Filing | |
Feb 11, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MARTINEAU, JASON;CHOI, CHANGHO;REEL/FRAME:040155/0550 Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Effective Date: Feb 11, 2016 |

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