Process of pickling stainless steel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 26, 2001
Grant Date -
N/A
app pub date -
Jul 15, 1999
filing date -
Jul 15, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process and apparatus for pickling the surface of stainless steel strip feeds the stainless steel strip through a plurality of pickling tanks containing a hydrochloric acid pickling acid. The pickling acid bath is maintained at a temperature of at least about 40.degree. C. An oxidizing agent is added to the acid solution in an amount to maintain at least about one third and preferably at least about half of the soluble iron in the form of ferric chloride based on the total amount of iron in the acid solution.
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 | |
---|---|---|
ANDRITZ-PATENTVERWALTUNGS-GESELLSCHAFT M B H | STATTEGERSTRASSE 18 A-8045 GRAZ |
International Classification(s)

- 1999 Application Filing Year
- C23G Class
- 62 Applications Filed
- 25 Patents Issued To-Date
- 40.33 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Braun, Edgar | Wien-Rodaun, AT | 3 | 9 |
# of filed Patents : 3 Total Citations : 9 | |||
Maresch, Gerald | Modling, AT | 14 | 68 |
# of filed Patents : 14 Total Citations : 68 | |||
Wasserbauer, Brigitta | Vienna, AT | 1 | 6 |
# of filed Patents : 1 Total Citations : 6 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 6 Citation Count
- C23G Class
- 0 % this patent is cited more than
- 24 Age
Forward Cite Landscape
- No Forward Cites to Display

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

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Nov 30, 2011 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Dec 03, 2007 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Sep 21, 2007 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Nov 26, 2003 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Jun 13, 2000 | I | Issuance | |
May 30, 2000 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Apr 14, 1998 | F | Filing | |
Apr 14, 1998 | PD | Priority Date | |
Apr 09, 1998 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CASPER, MARK S.;REEL/FRAME:009096/0645 Owner name: MOORE U.S.A., INC., NEW YORK Effective Date: Apr 09, 1998 |

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