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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE CLORETO DE ÁCIDO 3-NITROBENZENOSSULFÔNICO

Arquivada/ExtintaInvention PatentPCT · EP1991000322
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Application data

Number

PI9106106

Type

Invention Patent

Filing

02/21/1991

Publication

02/24/1993

PCT

EP1991000322
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Progress at the INPI

  1. Filing02/21/91
  2. Publication02/24/93
  3. Examination10/19/93
  4. Allowance11/17/98
  5. Grant06/15/99
  6. Expired06/18/13

The letters patent expired on 06/18/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/18/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Clariant GMBH

DE

H. A. (pessoa física)

DE

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Inventors

M. M. (pessoa física)

DE

R. W. (pessoa física)

DE

Technical data

IPC Classification

C07C 303/08C07C 303/12C07C 309/86

Priority claims

DE

P 40 06 666.5 · 03/03/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/02/2011

06/18/2013

RPI 2215

Transferência deferida

#25.1

Transferido de: Hoechst Aktiengesellschaft

07/31/2001

RPI 1595

Concessão da patente

#16.1

06/15/1999

RPI 1484

Deferimento

#9.1

11/17/1998

RPI 1454

Solicitação de exame técnico

#4.1

10/19/1993

RPI 1194

Retificação da notificação da fase nacional - PCT

#1.3.1

04/27/1993

RPI 1169

Retificação da notificação da fase nacional - PCT

#1.3.1

04/13/1993

RPI 1167

Notificação de entrada na fase nacional - PCT

#1.3

02/24/1993

RPI 1160

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