Register information Utility model

DE file number : 20 2021 105 568.5 (Status: not pending/lapsed, Query started: June 23, 2025)

Please note: This English version is a non-binding translation of the German register excerpt. Only the German version of the register excerpt is legally binding.

Master data
INIDCriterionFieldContent
Type of IP rightSARTUtility model
StatusSTNot pending/lapsed
21DE file number DAKZ20 2021 105 568.5
54Designation/titleTIEin kryptographisches System mit symmetrischem Schlüssel und mehreren privaten Schlüsseln
51IPC main classICM
(ICMV)		 H04L 9/00 (2022.01)
22DE application dateDATOct 13, 2021
47Date of registrationETFeb 1, 2022
45Date of publication of the registration in the patent gazettePETMar 10, 2022
71/73Applicant/ownerINHKadiyala, Venkata Siva Nageswararao, Bengaluru, Karnataka, IN; National Institute of Technology Silchar, Silchar, Assam, IN; Patgiri, Ripon, Dr., Silchar, Assam, IN; Patnaik, Uriti Kartheek Chandra, Visakhapatnam, Andhra Pradesh, IN; Ramesh, Repudi, Phirangipuram (Mandal), Andhra Pradesh, IN; Shekhar, Mayank, Silchar, Assam, IN; Singha, Mutum Franckie, Singari, Assam, IN; Watane, Hemant Nandkishor, Amravati, Maharashtra, IN
74RepresentativeVTRLIPPERT STACHOW Patentanwälte Rechtsanwälte Partnerschaft mbB, 46117 Oberhausen, DE
10Published DE documentsDEPNOriginal document: DE202021105568U1
Searchable text: DE202021105568U1
Address for service LIPPERT STACHOW Patentanwälte Rechtsanwälte Partnerschaft mbB, 46117 Oberhausen, DE
43Date of first publicationEVTFeb 1, 2022
Date of the first transfer into DPMAregisterEREGTFeb 1, 2022
Date of the (most recent) update in DPMAregisterREGTJun 13, 2025
(Show all update days)(Hide all update days)
  • Jun 13, 2025
    • Status: changed
    • Due date: deleted
    • Procedures: Utility model procedure, Utility model lapsed after expiry of 3 years, 01.05.2025: new
  • Aug 14, 2024
    • St.36: changed (technical change)
  • Jan 10, 2024; Mar 10, 2022
    • Historical data not available for this/these date(s)
  • Feb 1, 2022
    • Date of the first transfer into DPMAregister
Procedural data
No.Kind of procedureLegal statusDate of legal/procedural statusPublication dateAlle Details anzeigen
1 Pre-registration procedure The application is under preliminary examination Oct 13, 2021  Details anzeigen
2 Utility model procedure Registration of utility model Feb 1, 2022  Details anzeigen
3 Publications Utility model specification Mar 10, 2022 Mar 10, 2022 Details anzeigen
4 New representative details New representative details Jan 8, 2024  Details anzeigen
5 Utility model procedure IP right lapsed after expiry of 3 years May 1, 2025  Details anzeigen
View procedures Pre-registration procedure (No.: 1)
INIDCriterionFieldContent Close details
Type of procedureVARTPre-registration procedure
Legal/procedural statusVSTThe application is under preliminary examination
Date of legal/procedural statusVSTTOct 13, 2021
Date of update of the procedureREGTFeb 1, 2022
View procedures Utility model procedure (No.: 2)
INIDCriterionFieldContent Close details
Type of procedureVARTUtility model procedure
Legal/procedural statusVSTRegistration of utility model
Date of legal/procedural statusVSTTFeb 1, 2022
Date of update of the procedureREGTFeb 1, 2022
View procedures Publications (No.: 3)
INIDCriterionFieldContent Close details
Type of procedureVARTPublications
Legal/procedural statusVSTUtility model specification
Date of legal/procedural statusVSTTMar 10, 2022
Issue numberHN10
YearPJ2022
Publication dateVTMar 10, 2022
Type of publicationPARTDocuments
PartHTPart 4
10Published DE documentsDEPNOriginal document: DE202021105568U1
Searchable text: DE202021105568U1
Date of update of the procedureREGTMar 10, 2022
View procedures New representative details (No.: 4)
INIDCriterionFieldContent Close details
Type of procedureVARTNew representative details
Legal/procedural statusVSTNew representative details
Date of legal/procedural statusVSTTJan 8, 2024
74RepresentativeVTRLIPPERT STACHOW Patentanwälte Rechtsanwälte Partnerschaft mbB, 46117 Oberhausen, DE
74Previous representativeVTRFHohendorf Kierdorf Patentanwälte PartGmbB, 50672 Köln, DE
Date of update of the procedureREGTJan 10, 2024
View procedures Utility model procedure (No.: 5)
INIDCriterionFieldContent Close details
Type of procedureVARTUtility model procedure
Legal/procedural statusVSTIP right lapsed after expiry of 3 years
Date of legal/procedural statusVSTTMay 1, 2025
Date of update of the procedureREGTJun 13, 2025