Isolated nucleic acid molecules which encode mammalian or rodent 2,8 polysialyl transferases
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 1, 2000
Issued Date -
N/A
app pub date -
Jul 24, 1997
filing date -
Dec 22, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A protein having polysialyl transferase activity, which a) is a product of a prokaryotic or eukaryotic expression of an exogenous DNA, b) is coded by the DNA sequence shown in SEQ ID No. 1, c) is coded by the DNA sequences which hybridize with the sequences SEQ ID No. 1 and/or SEQ ID No. 3, d) is coded by DNA sequences which if there was no degeneracy of the genetic code, would hybridize with the sequences defined in b) to c), and e) catalyzes the polycondensation of .alpha.-2,8-linked sialic acids, and its related nucleic acid molecules and fragments are useful for the production of therapeutic agents for tumor therapy.
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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BOEHRINGER MANNHEIM GMBH | 68305 MANNHEIM |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Eckhardt, Matthias | Hanover, DE | 148 | 8994 |
# of filed Patents : 148 Total Citations : 8994 | |||
Fukuda, Minoru | San Diego, CA | 128 | 1537 |
# of filed Patents : 128 Total Citations : 1537 | |||
Gerardy-Schahn, Rita | Hiddenhausen, DE | 10 | 36 |
# of filed Patents : 10 Total Citations : 36 | |||
Nakayama, Jun | San Diego, CA | 29 | 350 |
# of filed Patents : 29 Total Citations : 350 |
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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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Legal Events
Date | Code | Event | Description |
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Jan 23, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Feb 02, 2004 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Feb 01, 2004 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 01, 2004 |
Aug 20, 2003 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Feb 13, 2001 | CC | CERTIFICATE OF CORRECTION | |
Feb 01, 2000 | I | Issuance | |
Jul 24, 1997 | F | Filing | |
Dec 22, 1994 | PD | Priority Date |

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