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Official data from INPI

COMPOSICAO E PROCESSO PARA O TRATAMENTO DE AGUAS DE FABRICACAO EM CIRCULACAO E AGUAS RESIDUAIS DAS INDUSTRIAS PRODUTORAS E SIMILARES

Em AnáliseInvention Patent

Application data

Number

PI8104437

Type

Invention Patent

Filing

07/11/1980

Publication

03/30/1982

Progress at the INPI

  1. Filing07/11/80
  2. Publication03/30/82
  3. Examination01/24/84
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Terminated07/12/88

The patent was granted on 02/04/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SUED CHEMIE AG

Inventors

M. C. (pessoa física)

W. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Republicação - classificação IPC

#15.11

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

09/25/1984

RPI 727

Solicitação de exame técnico

#4.1

01/24/1984

RPI 692

Publicação do pedido de patente

#3.1

03/30/1982

RPI 597

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