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Official data from INPI

PROCESSO PARA TRATAMENTO DE UM MINERAL DE ARGILA.

Em AnáliseInvention Patent

Application data

Number

PI8606282

Type

Invention Patent

Filing

12/18/1986

Publication

10/06/1987

Progress at the INPI

  1. Filing12/18/86
  2. Publication10/06/87
  3. Examination02/09/88
  4. Allowance01/10/95
  5. Grant07/25/95
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 02/09/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ECC International Limited

GB

See this company's full portfolio

Inventors

T. J. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8531253 · 12/19/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/09/1988

RPI 903

Publicação do pedido de patente

#3.1

10/06/1987

RPI 885

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Carta-patente expirada

#21.1

Patente extinta em 18/12/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

05/30/1995

RPI 1278

Deferimento

#9.1

01/10/1995

RPI 1258

Exigência - art. 36 da LPI

#6.1

03/02/1993

RPI 1161

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