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Official data from INPI

PROCESSO PARA A PURIFICAÇÃO DE ÁGUA CONTENDO SULFETO, PROCESSO PARA O TRATAMENTO ANAERÓBICO DE ÁGUA DE ESGOTO, E, PROCESSO PARA A REMOÇÃO DE IONS DE METAL PESADO DA ÁGUA

Arquivada/ExtintaInvention PatentPCT · NL1991000059

Application data

Number

PI9105710

Type

Invention Patent

Filing

04/11/1991

Publication

08/04/1992

PCT

NL1991000059

Progress at the INPI

  1. Filing04/11/91
  2. Publication08/04/92
  3. Examination04/06/93
  4. Allowance08/18/98
  5. Grant12/29/98
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Paques B.V.

NL

See this company's full portfolio

Inventors

C. B. (pessoa física)

NL

Technical data

Priority claims

NL

9000877 · 04/12/1990

NL

9000878 · 04/12/1990

NL

9000879 · 04/12/1990

NL

9000880 · 04/12/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 11/04/2011

06/11/2013

RPI 2214

Alteração de sede deferida

#25.7

Sede alterada conforme solicitado na Petição nº 020060127069/RJ de 17/08/2006.

12/12/2006

RPI 1875

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

08/18/1998

RPI 1443

Exigência - art. 36 da LPI

#6.1

03/18/1997

RPI 1372

Solicitação de exame técnico

#4.1

04/06/1993

RPI 1166

Notificação de entrada na fase nacional - PCT

#1.3

08/04/1992

RPI 1131

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