DE19927637 德国专利是什么状态?

如题,谢谢

Abstract of DE19927637
Preparation of an adsorber (A) for removing substances from blood comprises immobilizing biologically active DNA ligands (I), generally at 0.5-3 mg/ml of adsorber, on spherical cellulose particles activated with epichlorohydrin (II).

Legal status (INPADOC) of DE19927637

        
DE  F  19927637 A  (Patent of invention)
   &nbsp[s:10]RS Date :   2001/05/23
   &nbsp[s:10]RS Code :   8127
    Code Expl.:    NEW PERSON/NAME/ADDRESS OF THE APPLICANT
       NEW OWNER:   RESEARCH AND DEVELOPMENT CENTER OF BIOEERING GMBH, 1

        
   &nbsp[s:10]RS Date :   2001/08/23
   &nbsp[s:10]RS Code :   8127
    Code Expl.:    NEW PERSON/NAME/ADDRESS OF THE APPLICANT
       NEW OWNER:   RESEARCH AND DEVELOPMENT CENTER OF BIOENGINEERING GM

        
   &nbsp[s:10]RS Date :   2003/10/02
   &nbsp[s:10]RS Code :   8127
    Code Expl.:    NEW PERSON/NAME/ADDRESS OF THE APPLICANT
       NEW OWNER:   JMS CO. LTD., HIROSHIMA, JP

        
   &nbsp[s:10]RS Date :   2003/10/02
   &nbsp[s:10]RS Code :   8128
    Code Expl.:    NEW PERSON/NAME/ADDRESS OF THE AGENT
       NEW REPRESENTATIVE:   ROTHER, B., DIPL.-ING. PAT.-ING. DR.-ING., PAT.-AN

        
   &nbsp[s:10]RS Date :   2005/04/07
   &nbsp[s:10]RS Code :   8139
    Code Expl.:   - DISPOSAL/NON-PAYMENT OF THE ANNUAL FEE

最后一句是它没有交年费。专利权中止了吧！

多谢了!得到只是DE19927637  A1的文,Original document没有内容.