Register information Patent

DE file number : P 38 71 290.3 (Status: not pending/lapsed, Query started: September 29, 2024)

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 rightSARTPatent
StatusSTNot pending/lapsed
21DE file number DAKZP 38 71 290.3
96EP file numberEAKZ88 11 3862.2
97EP publication numberEPN305898
54Designation/titleTIVerfahren zur Abtrennung und Reinigung von Celluloseethern und anderen Cellulosederivaten.
51IPC main classICM
(ICMV)		 B01D 29/50 (2000.01)
51IPC secondary class(es)ICS
(ICSV)		 C08B 11/20 (2000.01)
22DE application dateDATAug 25, 1988
96EP application dateEATAug 25, 1988
43Date of first publicationOTApr 13, 1989
Date of publication of grantPETMay 20, 1992
71/73Applicant/ownerINHAqualon Co., Wilmington, US
72InventorINRähse Dr., Wilfried, W-4000 Düsseldorf 13, DE; Wüst Dr., Willi, W-4030 Ratingen, DE; Kühne, Norbert, W-5657 Haan 2, DE
74RepresentativeVTRvon Kreisler Selting Werner, 50667 Köln, DE
Address for service Herren Patentanwälte Dipl.-Chem. Alek von Kreisler und Kollegen, 50462 Köln, DE
66
66
Domestic priorityPRN
PRD
3729268
Sep 2, 1987
Patent division in charge 27
97EP language of publicationELANGDE - Deutsch
84Designated EP contracting statesEDSBE, CH, DE, FR, GB, IT, LI, NL, SE
43Date of first publicationEVTMar 8, 1989
Date of the first transfer into DPMAregisterEREGTSep 25, 2012
Date of the (most recent) update in DPMAregisterREGTJan 19, 2013
(Show all update days)(Hide all update days)
  • Jan 19, 2013
    • Historical data not available for this/these date(s)
  • Sep 25, 2012
    • Date of the first transfer into DPMAregister
Procedural data
No. Kind of procedure Legal status Date of legal/procedural status Date of legal/procedural status sorted ascending Date of first publication Display all details
1 Procedure relating to EP application EPO 1st publication Mar 8, 1989   Display details
2 Publications Publication of a mention regarding EP 1st publication by DPMA Apr 13, 1989 Apr 13, 1989 Display details
3 Change of classification Change of IPC main class Dec 23, 1989   Display details
4 Procedure relating to EP application EPO publication of search report Mar 7, 1990   Display details
5 Change of classification Change of IPC main class Apr 3, 1992   Display details
6 Procedure relating to EP application EPO publication of mention regarding patent grant (beginning of opposition period) May 20, 1992   Display details
7 Publications Publication by DPMA of mention regarding EP patent grant Jun 25, 1992 Jun 25, 1992 Display details
8 Procedure relating to EP application No opposition to patent grant filed, or opposition proceedings at EPO completed without decision Feb 22, 1993 Jun 17, 1993 Display details
9 Change of classification Change of IPC main class Oct 1, 1994   Display details
10 New applicant/owner details New applicant/owner details Oct 14, 1997 Dec 18, 1997 Display details
11 Change of classification Change of IPC main class Oct 9, 1999   Display details
12 Administrative procedure Application is deemed to be withdrawn due to non-payment of annual fee/ IP right has lapsed due to non-payment of annual fee Jun 1, 2000 Oct 12, 2000 Display details