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Official data from INPI

CONJUNTO PARA SECAGEM E PREAQUECIMENTO DE CARVÃO DE COQUE

ConcedidaInvention Patent

Application data

Number

PI8202371

Type

Invention Patent

Filing

04/26/1982

Publication

04/05/1983

Progress at the INPI

  1. Filing04/26/82
  2. Publication04/05/83
  3. Examination09/06/83
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Terminated06/26/90

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: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Krupp-Koppers Gmbh

DE

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Inventors

H. D. (pessoa física)

DE

V. P. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 31 17 967.3 · 05/07/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

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

Solicitação de exame técnico

#4.1

06/05/1984

RPI 711

Solicitação de exame técnico

#4.1

09/06/1983

RPI 672

Publicação do pedido de patente

#3.1

04/05/1983

RPI 650

Pedido de patente depositado

#2.1

06/15/1982

RPI 608

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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