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Official data from INPI

PROCESSO PARA CONTROLAR A LARGURA DE INTERVALO DE TRITURAÇÃO DE UM TRITURADOR GIRATÓRIO

PublicadaInvention Patent

Application data

Number

PI8704805

Type

Invention Patent

Filing

09/18/1987

Publication

03/21/1989

Progress at the INPI

  1. Filing09/18/87
  2. Publication03/21/89
  3. Examination10/23/90
  4. Allowance06/04/91
  5. Grant03/31/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

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Inventors

J. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/21/1989

RPI 961

Pedido de patente depositado

#2.1

12/01/1987

RPI 893

Carta-patente expirada

#21.1

Patente extinta em 18/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/31/1992

RPI 1113

Notificação para pagamento de retribuição

#13.1

10/01/1991

RPI 1087

Deferimento

#9.1

06/04/1991

RPI 1070

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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