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Official data from INPI

INSTALAÇÃO PARA A PURIFICÃO ANAERÓBICA DE ÁGUA DE REJEITO

Em AnáliseInvention Patent

Application data

Number

PI8600944

Type

Invention Patent

Filing

03/05/1986

Publication

11/11/1986

Progress at the INPI

  1. Filing03/05/86
  2. Publication11/11/86
  3. Examination12/30/86
  4. Allowance01/26/93
  5. Grant07/27/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Paques B.V.

NL

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Inventors

S. V. (pessoa física)

Technical data

IPC Classification

Priority claims

NL

8500634 · 03/06/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/30/1986

RPI 845

Publicação do pedido de patente

#3.1

11/11/1986

RPI 838

Pedido de patente depositado

#2.1

08/26/1986

RPI 827

Carta-patente expirada

#21.1

Patente extinta em 05/03/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

07/27/1993

RPI 1182

Notificação para pagamento de retribuição

#13.1

05/11/1993

RPI 1171

Deferimento

#9.1

01/26/1993

RPI 1156

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