Resist stripping process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 27, 2002
Issued Date -
N/A
app pub date -
Oct 3, 2000
filing date -
Feb 26, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for removing patterned negative working resist from the surface of a substrate during manufacture of printed wiring boards is disclosed. The process includes the steps of contacting the patterned resist with a stripping solution containing an alkalinity source as well as a source of ammonium ions. The stripping solution is characterized in that it does not contain volatile organic compounds (VOCs).
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ALPHA METALS INC | 109 CORPORATE BOULEVARD SOUTH PLAINFIELD NJ 07080 |
International Classification(s)

- 2000 Application Filing Year
- G03F Class
- 1038 Applications Filed
- 460 Patents Issued To-Date
- 44.32 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Yakobson, Eric | Aliso Viejo, CA | 26 | 208 |
# of filed Patents : 26 Total Citations : 208 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 10 Citation Count
- G03F Class
- 1.72 % this patent is cited more than
- 23 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 |
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Jan 27, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Aug 27, 1995 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Apr 04, 1995 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Aug 27, 1991 | I | Issuance | |
Jul 02, 1990 | F | Filing | |
Jul 20, 1988 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:YASUE, KENJI;MARUTANI, TAKESHI;FUKUSHIMA, YASUMASA;AND OTHERS;REEL/FRAME:005650/0857 Owner name: STAMICARSON B.V., MIJNWEG 1, 6167 AC GELEEN, THE N Effective Date: Jul 20, 1988 |
Jul 27, 1987 | PD | Priority Date |

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