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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE AÇO A PARTIR DE PORTADORES DE FERRO METÁLICOS, SÓLIDOS

ConcedidaInvention Patent

Application data

Number

PI8303771

Type

Invention Patent

Filing

07/14/1983

Publication

02/21/1984

Progress at the INPI

  1. Filing07/14/83
  2. Publication02/21/84
  3. Examination11/18/86
  4. Allowance01/10/89
  5. Grant08/29/89
  6. Terminated05/02/95

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Klockner Cra Technologie GmbH

DE

Inventors

D. C. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P3226590.5 · 07/16/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

07/05/1988

RPI 924

6.2

06/23/1987

RPI 870

Solicitação de exame técnico

#4.1

11/18/1986

RPI 839

14.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

02/21/1984

RPI 696

Pedido de patente depositado

#2.1

09/20/1983

RPI 674

Anuidade - prazo legal encerrado

#18.2

05/02/1995

RPI 1274

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