Process for the production of phthalimides
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United States of America Patent
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Jul 11, 2017
Issued Date -
N/A
app pub date -
Dec 19, 2014
filing date -
Dec 19, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a process to produce phthalimides by heating diammonium phthalate in the presence of aromatic solvents and to a process to produce phthalimides by heating diammonium phthalate in the presence of aromatic solvents for their recycled use during the ion exchanger production process. The diammonium phthalate is prepared by making use of the phthalic add salts solution resulted from the on exchanger production process.
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LANXESS DEUTSCHLAND GMBH | 50569 KÖLN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Boeger, Uwe | Leverkusen, DE | 3 | 1 |
# of filed Patents : 3 Total Citations : 1 | |||
Issling, Guido | Langenfeld, DE | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Koschorreck, Markus | Duesseldorf, DE | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Martin, Georg | Langenfeld, DE | 9 | 11 |
# of filed Patents : 9 Total Citations : 11 | |||
Pies, Michael | Duisburg, DE | 6 | 11 |
# of filed Patents : 6 Total Citations : 11 | |||
Zarges, Wolfgang | Cologne, DE | 24 | 172 |
# of filed Patents : 24 Total Citations : 172 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 11, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 11, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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