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Official data from INPI

PROCESSO DE ALTA EFICIÊNCIA PARA DIÓXIDO DE CLORO

Em AnáliseInvention Patent

Application data

Number

PI8402787

Type

Invention Patent

Filing

06/08/1984

Publication

05/21/1985

Progress at the INPI

  1. Filing06/08/84
  2. Publication05/21/85
  3. Examination08/20/85
  4. Allowance08/08/89
  5. Grant03/20/90
  6. Terminated03/03/92

The patent was granted on 03/20/1990 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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Erco Industries Limited

Tenneco Canada Inc.

CA

Inventors

M. F. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

CA

430,111 · 06/10/1983

CA

431,677 · 06/30/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

12/05/1989

RPI 998

Deferimento

#9.1

08/08/1989

RPI 981

Exigência - art. 36 da LPI

#6.1

04/11/1989

RPI 964

Exigência - art. 36 da LPI

#6.1

09/27/1988

RPI 936

14.1

05/17/1988

RPI 917

Retificação

#15.6

12/08/1987

RPI 894

Retificação

#15.3

09/22/1987

RPI 883

Solicitação de exame técnico

#4.1

08/20/1985

RPI 774

Publicação do pedido de patente

#3.1

05/21/1985

RPI 761

Pedido de patente depositado

#2.1

08/14/1984

RPI 721

Anuidade - prazo legal encerrado

#18.2

03/03/1992

RPI 1109

Concessão da patente

#16.1

03/20/1990

RPI 1010

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