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Official data from INPI

PROCESSO CONTÍNUO PARA A REMOÇÃO DE NITRATO E/OU DE IMPUREZAS ORGÂNICAS DE ÁGUAS SERVIDAS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002142

Type

Invention Patent

Filing

05/08/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/08/90
  2. Publication08/13/91
  3. Examination12/14/93
  4. Allowance07/09/96
  5. Grant06/24/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bayer Antwerpen N.V

BE

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Inventors

D. S. (pessoa física)

BE

D. V. (pessoa física)

BE

D. P. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

BE

89 108 278.6 · 05/09/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/05/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

06/24/1997

RPI 1386

Notificação para pagamento de retribuição

#13.1

03/11/1997

RPI 1371

Deferimento

#9.1

07/09/1996

RPI 1336

Exigência - art. 36 da LPI

#6.1

10/17/1995

RPI 1298

Solicitação de exame técnico

#4.1

12/14/1993

RPI 1202

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

09/18/1990

RPI 1033

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