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Official data from INPI

APARELHO PARA DEGASEIFICAÇÃO DE PASTA DE CELULOSE

ConcedidaInvention Patent

Application data

Number

PI8203271

Type

Invention Patent

Filing

06/03/1982

Publication

05/24/1983

Progress at the INPI

  1. Filing06/03/82
  2. Publication05/24/83
  3. Examination05/07/85
  4. Allowance07/14/87
  5. Grant12/29/87
  6. Terminated06/26/90

The patent was granted on 12/29/1987 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Enso-Gutzeit Oy

FI

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Inventors

J. M. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

811751 · 06/05/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Conhecimento de parecer técnico

#7.1

11/05/1985

RPI 785

Solicitação de exame técnico

#4.1

05/07/1985

RPI 759

Publicação do pedido de patente

#3.1

05/24/1983

RPI 657

Pedido de patente depositado

#2.1

07/27/1982

RPI 614

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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