Register information Patent

DE file number : P 29 66 457.1 (Status: not pending/lapsed, Query started: November 19, 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 29 66 457.1
96EP file numberEAKZ79 30 0036.5
97EP publication numberEPN13465
54Designation/titleTIMehrstufige Schaumflotation mit zwischenliegendem Rückstrom.
51IPC main classICM
(ICMV)		 B03D 1/02 (1985.01)
51IPC secondary class(es)ICS
(ICSV)		 C02F 1/24 (1985.01), B01D 17/02 (1985.01)
22DE application dateDATJan 10, 1979
96EP application dateEATJan 10, 1979
43Date of first publicationOTJul 23, 1980
Date of publication of grantPETDec 7, 1983
71/73Applicant/ownerINHChevron Research Co., San Francisco, Calif., US
72InventorINHinds, Robert J., San Rafael California 94901, US
74RepresentativeVTRMüller-Boré & Partner Patentanwälte PartG mbB, 80639 München, DE
Address for service Müller-Boré & Partner Patentanwälte PartG mbB, 80639 München, DE
Patent division in charge 45
97EP language of publicationELANGEN - Englisch
84Designated EP contracting statesEDSDE, GB, NL
43Date of first publicationEVTJul 23, 1980
Date of the first transfer into DPMAregisterEREGTOct 1, 2012
Date of the (most recent) update in DPMAregisterREGTMay 12, 2015
(Show all update days)(Hide all update days)
  • May 12, 2015; Feb 5, 2013
    • Historical data not available for this/these date(s)
  • Oct 1, 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 Jul 23, 1980   Display details
2 Procedure relating to EP application EPO publication of search report Jul 23, 1980   Display details
3 Procedure relating to EP application EPO publication of mention regarding patent grant (beginning of opposition period) Dec 7, 1983   Display details
4 Publications Publication by DPMA of mention regarding EP patent grant Jan 12, 1984 Jan 12, 1984 Display details
5 Administrative procedure Application is deemed to be withdrawn due to non-payment of annual fee/ IP right has lapsed due to non-payment of annual fee Oct 1, 1993 Jan 13, 1994 Display details